research abstract sample

Writing an Abstract for Your Research Paper

Definition and Purpose of Abstracts

An abstract is a short summary of your (published or unpublished) research paper, usually about a paragraph (c. 6-7 sentences, 150-250 words) long. A well-written abstract serves multiple purposes:

• an abstract lets readers get the gist or essence of your paper or article quickly, in order to decide whether to read the full paper;
• an abstract prepares readers to follow the detailed information, analyses, and arguments in your full paper;
• and, later, an abstract helps readers remember key points from your paper.

It’s also worth remembering that search engines and bibliographic databases use abstracts, as well as the title, to identify key terms for indexing your published paper. So what you include in your abstract and in your title are crucial for helping other researchers find your paper or article.

If you are writing an abstract for a course paper, your professor may give you specific guidelines for what to include and how to organize your abstract. Similarly, academic journals often have specific requirements for abstracts. So in addition to following the advice on this page, you should be sure to look for and follow any guidelines from the course or journal you’re writing for.

The Contents of an Abstract

Abstracts contain most of the following kinds of information in brief form. The body of your paper will, of course, develop and explain these ideas much more fully. As you will see in the samples below, the proportion of your abstract that you devote to each kind of information—and the sequence of that information—will vary, depending on the nature and genre of the paper that you are summarizing in your abstract. And in some cases, some of this information is implied, rather than stated explicitly. The Publication Manual of the American Psychological Association , which is widely used in the social sciences, gives specific guidelines for what to include in the abstract for different kinds of papers—for empirical studies, literature reviews or meta-analyses, theoretical papers, methodological papers, and case studies.

Here are the typical kinds of information found in most abstracts:

• the context or background information for your research; the general topic under study; the specific topic of your research
• the central questions or statement of the problem your research addresses
• what’s already known about this question, what previous research has done or shown
• the main reason(s) , the exigency, the rationale , the goals for your research—Why is it important to address these questions? Are you, for example, examining a new topic? Why is that topic worth examining? Are you filling a gap in previous research? Applying new methods to take a fresh look at existing ideas or data? Resolving a dispute within the literature in your field? . . .
• your research and/or analytical methods
• your main findings , results , or arguments
• the significance or implications of your findings or arguments.

Your abstract should be intelligible on its own, without a reader’s having to read your entire paper. And in an abstract, you usually do not cite references—most of your abstract will describe what you have studied in your research and what you have found and what you argue in your paper. In the body of your paper, you will cite the specific literature that informs your research.

When to Write Your Abstract

Although you might be tempted to write your abstract first because it will appear as the very first part of your paper, it’s a good idea to wait to write your abstract until after you’ve drafted your full paper, so that you know what you’re summarizing.

What follows are some sample abstracts in published papers or articles, all written by faculty at UW-Madison who come from a variety of disciplines. We have annotated these samples to help you see the work that these authors are doing within their abstracts.

Choosing Verb Tenses within Your Abstract

The social science sample (Sample 1) below uses the present tense to describe general facts and interpretations that have been and are currently true, including the prevailing explanation for the social phenomenon under study. That abstract also uses the present tense to describe the methods, the findings, the arguments, and the implications of the findings from their new research study. The authors use the past tense to describe previous research.

The humanities sample (Sample 2) below uses the past tense to describe completed events in the past (the texts created in the pulp fiction industry in the 1970s and 80s) and uses the present tense to describe what is happening in those texts, to explain the significance or meaning of those texts, and to describe the arguments presented in the article.

The science samples (Samples 3 and 4) below use the past tense to describe what previous research studies have done and the research the authors have conducted, the methods they have followed, and what they have found. In their rationale or justification for their research (what remains to be done), they use the present tense. They also use the present tense to introduce their study (in Sample 3, “Here we report . . .”) and to explain the significance of their study (In Sample 3, This reprogramming . . . “provides a scalable cell source for. . .”).

Sample Abstract 1

From the social sciences.

Reporting new findings about the reasons for increasing economic homogamy among spouses

Gonalons-Pons, Pilar, and Christine R. Schwartz. “Trends in Economic Homogamy: Changes in Assortative Mating or the Division of Labor in Marriage?” Demography , vol. 54, no. 3, 2017, pp. 985-1005.

Sample Abstract 2

From the humanities.

Analyzing underground pulp fiction publications in Tanzania, this article makes an argument about the cultural significance of those publications

Emily Callaci. “Street Textuality: Socialism, Masculinity, and Urban Belonging in Tanzania’s Pulp Fiction Publishing Industry, 1975-1985.” Comparative Studies in Society and History , vol. 59, no. 1, 2017, pp. 183-210.

Sample Abstract/Summary 3

From the sciences.

Reporting a new method for reprogramming adult mouse fibroblasts into induced cardiac progenitor cells

Lalit, Pratik A., Max R. Salick, Daryl O. Nelson, Jayne M. Squirrell, Christina M. Shafer, Neel G. Patel, Imaan Saeed, Eric G. Schmuck, Yogananda S. Markandeya, Rachel Wong, Martin R. Lea, Kevin W. Eliceiri, Timothy A. Hacker, Wendy C. Crone, Michael Kyba, Daniel J. Garry, Ron Stewart, James A. Thomson, Karen M. Downs, Gary E. Lyons, and Timothy J. Kamp. “Lineage Reprogramming of Fibroblasts into Proliferative Induced Cardiac Progenitor Cells by Defined Factors.” Cell Stem Cell , vol. 18, 2016, pp. 354-367.

Sample Abstract 4, a Structured Abstract

Reporting results about the effectiveness of antibiotic therapy in managing acute bacterial sinusitis, from a rigorously controlled study

Note: This journal requires authors to organize their abstract into four specific sections, with strict word limits. Because the headings for this structured abstract are self-explanatory, we have chosen not to add annotations to this sample abstract.

Wald, Ellen R., David Nash, and Jens Eickhoff. “Effectiveness of Amoxicillin/Clavulanate Potassium in the Treatment of Acute Bacterial Sinusitis in Children.” Pediatrics , vol. 124, no. 1, 2009, pp. 9-15.

“OBJECTIVE: The role of antibiotic therapy in managing acute bacterial sinusitis (ABS) in children is controversial. The purpose of this study was to determine the effectiveness of high-dose amoxicillin/potassium clavulanate in the treatment of children diagnosed with ABS.

METHODS : This was a randomized, double-blind, placebo-controlled study. Children 1 to 10 years of age with a clinical presentation compatible with ABS were eligible for participation. Patients were stratified according to age (<6 or ≥6 years) and clinical severity and randomly assigned to receive either amoxicillin (90 mg/kg) with potassium clavulanate (6.4 mg/kg) or placebo. A symptom survey was performed on days 0, 1, 2, 3, 5, 7, 10, 20, and 30. Patients were examined on day 14. Children’s conditions were rated as cured, improved, or failed according to scoring rules.

RESULTS: Two thousand one hundred thirty-five children with respiratory complaints were screened for enrollment; 139 (6.5%) had ABS. Fifty-eight patients were enrolled, and 56 were randomly assigned. The mean age was 6630 months. Fifty (89%) patients presented with persistent symptoms, and 6 (11%) presented with nonpersistent symptoms. In 24 (43%) children, the illness was classified as mild, whereas in the remaining 32 (57%) children it was severe. Of the 28 children who received the antibiotic, 14 (50%) were cured, 4 (14%) were improved, 4(14%) experienced treatment failure, and 6 (21%) withdrew. Of the 28children who received placebo, 4 (14%) were cured, 5 (18%) improved, and 19 (68%) experienced treatment failure. Children receiving the antibiotic were more likely to be cured (50% vs 14%) and less likely to have treatment failure (14% vs 68%) than children receiving the placebo.

CONCLUSIONS : ABS is a common complication of viral upper respiratory infections. Amoxicillin/potassium clavulanate results in significantly more cures and fewer failures than placebo, according to parental report of time to resolution.” (9)

Some Excellent Advice about Writing Abstracts for Basic Science Research Papers, by Professor Adriano Aguzzi from the Institute of Neuropathology at the University of Zurich:

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Writing Guides  /  15 Abstract Examples: A Comprehensive Guide

15 Abstract Examples: A Comprehensive Guide

Demystifying Abstract Writing

An abstract represents a concise, well-articulated summary of an academic piece or research. But writing an abstract goes beyond merely creating a summary. In this piece, we’ll delve into examples of abstracts to illuminate what they truly are, along with the necessary tone, style, and word counts.

You’ll also see how diverse abstract writing can be, tailored according to the subject area. For instance, an abstract for empirical research in the sciences contrasts greatly from that of a humanities article.

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The Importance of Abstracts: Why Do We Write Them?

Every abstract you encounter, including our abstract writing example, has a few core characteristics. The primary role of an abstract is to encapsulate the essential points of a research article, much like a book’s back cover. The back jacket often influences whether you buy the book or not.

Similarly, academic papers are often behind paywalls, and the abstract assists readers in deciding if they should purchase the article. If you’re a student or researcher, the abstract helps you gauge whether the article is worth your time.

Furthermore, abstracts promote ongoing research in your field by incorporating keywords that allow others to locate your work. Knowing how to write a good abstract contributes to your professionalism, especially crucial for graduate-level studies. This skill might be vital when submitting your research to peer-reviewed journals or soliciting grant funding.

Breaking Down an Abstract: What’s Inside?

The contents of an abstract heavily rely on the type of study, research design, and subject area. An abstract may contain a succinct background statement highlighting the research’s significance, a problem statement, the methodologies used, a synopsis of the results, and the conclusions drawn.

When it comes to writing an abstract for a research paper, striking a balance between consciousness and informative detail is essential. Our examples of abstracts will help you grasp this balance better.

Moreover, you’ll learn how to format abstracts variably, matching the requirements of your degree program or publication guidelines.

Key Elements to Include in Your Abstract

• Brief Background: Introduce the importance of the research from your point of view.
• Problem Statement: Define the issue your research addresses, commonly referred to as the thesis statement.
• Methodology: Describe the research methods you employed.
• Synopsis: This should include a summary of your results and conclusions.
• Keywords: Implement terms that others will use to find your article.

Types of Abstracts

• Descriptive Abstracts: These give an overview of the source material without delving into results and conclusions.
• Informative Abstracts: These offer a more detailed look into your research, including the purpose, methods, results, and conclusions.
• Always write your abstract in the present tense.
• Keep track of word counts to maintain brevity.
• The original text should guide your abstract.
• Always provide a good synopsis in your abstract.
• If needed, use your abstract to draft a compelling query letter.
• Consider providing a literature review abstract if your research involves an extensive review of existing literature.

Types of Abstract

According to the Purdue Online Writing Lab resource, there are two different types of abstract: informational and descriptive.

Although informative and descriptive abstracts seem similar, they are different in a few key ways.

An informative abstract contains all the information related to the research, including the results and the conclusion.

A descriptive abstract is typically much shorter, and does not provide as much information. Rather, the descriptive abstract just tells the reader what the research or the article is about and not much more.

The descriptive abstract is more of a tagline or a teaser, whereas the informative abstract is more like a summary.

You will find both types of abstracts in the examples below.

Abstract Examples

Informative abstract example 1.

Emotional intelligence (EQ) has been correlated with leadership effectiveness in organizations. Using a mixed-methods approach, this study assesses the importance of emotional intelligence on academic performance at the high school level.

The Emotional Intelligence rating scale was used, as well as semi-structured interviews with teachers. Participant grades were collected. Emotional intelligence was found to correlate positively with academic success. Implications for pedagogical practice are discussed.

Explanation

This is a typical informative abstract for empirical social sciences research. Most informative abstracts proceed in a logical fashion to reflect the organization of the main paper: with sections on the background, methods, results, and conclusions.

Informative Abstract Example 2

Social learning takes place through observations of others within a community. In diverse urban landscapes and through digital media, social learning may be qualitatively different from the social learning that takes place within families and tightly-knit social circles.

This study examines the differences between social learning that takes place in the home versus social learning that takes place from watching celebrities and other role models online. Results show that social learning takes place with equal efficacy. These results show that social learning does not just take place within known social circles, and that observations of others can lead to multiple types of learning.

This is a typical informative abstract for empirical social science research. After the background statement, the author discusses the problem statement or research question, followed by the results and the conclusions.

Informative Abstract Example 3

Few studies have examined the connection between visual imagery and emotional reactions to news media consumption. This study addresses the gap in the literature via the use of content analysis. Content analysis methods were used to analyze five news media television sites over the course of six months.

Using the Yolanda Metrics method, the researchers ascertained ten main words that were used throughout each of the news media sites. Implications and suggestions for future research are included.

This abstract provides an informative synopsis of a quantitative study on content analysis. The author provides the background information, addresses the methods, and also outlines the conclusions of the research.

Informative Abstract Example 4

This study explores the relationship between nurse educator theoretical viewpoints and nursing outcomes. Using a qualitative descriptive study, the researchers conducted face-to-face interviews with nursing students and nurse educators. The results show that nurse educator theoretical viewpoints had a direct bearing on nurse self-concept. Nurse educators should be cognizant of their biases and theoretical viewpoints when instructing students.

This example showcases how to write an abstract for a qualitative study. Qualitative studies also have clearly defined research methods. Therefore, it is important to keep in mind the general principles of informative abstract writing. Always begin with the research question or problem statement, and proceed to offer a one-sentence description of study methods and results.

Informative Abstract Example 5

Aboriginal people have poorer health outcomes versus their counterparts from other ethnic groups. In this study, public health researchers conducted an epidemiological data analysis using results from the Transcultural Health Report. Using a chi-square test, the researchers found that there is a direct correlation between ethnicity and health status. Policymakers should consider introducing methods for reducing health disparities among minority groups.

This informative abstract details the methods used in the report. As with other informative abstracts, it is written in the past tense. The abstract provides the reader with a summary of the research that has already been conducted.

Informative Abstract Example 6

We examine the contradictions of decolonization as official state policy. Using themes related to decolonization from the literature, we discuss how oppressed people develop cogent policies that create new systems of power. Intersectionality is also discussed.

Through a historical analysis, it was found that decolonization and political identity construction take place not as reactionary pathways but as deliberate means of regaining access to power and privilege. The cultivation of new political and social identities promotes social cohesion in formerly colonized nation-states, paving the way for future means of identity construction.

This abstract is informative but because it does not involve a unique empirical research design, it is written in a different manner from other informative abstracts. The researchers use tone, style, and diction that parallels that which takes place within the body of the text. The main themes are elucidated.

Informative Abstract Example 7

The implementation of a nationwide mandatory vaccination program against influenza in the country of Maconda was designed to lower rates of preventable illnesses. This study was designed to measure the cost-effectiveness of the mandatory vaccination program.

This is a cohort study designed to assess the rates of new influenza cases among both children (age > 8 years) and adults (age > 18 years). Using the National Reference Data Report of Maconda, the researchers compiled new case data (n = 2034) from 2014 to 2018.

A total of 45 new cases were reported during the years of 2014 and 2015, and after that, the number of new cases dropped by 74%.

The significant decrease in new influenza cases can be attributed to the introduction of mandatory vaccination.

Interpretation

The mandatory vaccination program proves cost-effective given its efficacy in controlling the disease.

This method of writing an informative abstract divides the content into respective subject headers. This style makes the abstract easier for some readers to scan quickly.

Informative Abstract Example 8

Mindfulness-based meditation and mindfulness-based stress reduction techniques have been shown to reduce burnout and improve employee engagement. Using a pretest/posttest design, the researchers randomly assigned nurses (n = 136) to the control and experimental groups. The Kabat-Zinn mindfulness-based stress reduction technique was used as the primary intervention for the experimental group.

Quantitative findings revealed significant improvements on self-report scales for depression and anxiety. Nurse leaders and administrators should consider implementing a mindfulness-based stress reduction program to reduce burnout and improve overall nurse performance.

This abstract contains all the necessary information you would need to make an assessment of whether the research was pertinent to your study. When you are writing an informative abstract, consider taking one sentence from each of the sections in your research (introduction/background, methods, results, and conclusion).

Descriptive Abstract Example 1

What inspires individuals to become members of a new religious movement, or a “cult”? This review of the literature offers some suggestions as to the psychological and sociological motivations for joining a new religious movement, offering suggestions for future research.

Unlike informative abstracts, descriptive abstracts simply alert the reader of the main gist of the article. Reading this abstract does not tell you exactly what the researchers found out about their subject, but it does let the reader know what the overall subject matter was and the methods used to conduct the research.

Descriptive Abstract Example 2

With few remaining survivors of the Holocaust, it becomes critical for historians to gather as much data that can contribute to an overall understanding of the ways trauma has been incorporated into identity. Interviews with five Holocaust survivors reveal new information about the role that art and music played in self-healing and community healing.

This descriptive abstract does not give too much information away, simply telling the reader that the researcher used interviews and a case study research design. Although it is a brief description of the study, the researchers succinctly summarize the contents and results.

Descriptive Abstract Example 3

Absurdist theater and literature have had a strong influence on playwrights in France and England. This analysis of absurdist theater addresses the primary symbols being used in absurdist literature and traces the evolution of those symbols as they parallel historical events.

As with most descriptive abstracts, this example is short. You can use descriptive abstracts to provide the reader with a summary of non-empirical research such as literary criticism.

Descriptive Abstract Example 4

The architecture of Oscar Niemeyer reflects socialist sensibilities in the urban planning of Brasilia. This research explores the philosophical underpinnings of Niemeyer’s design through an analysis of several of the main elements of the National Congress of Brazil. Implications and influences of Niemeyer’s work are also discussed.

Note how with the descriptive abstract, you are writing about the research in a more abstract and detached way than when you write an informative abstract.

Descriptive Abstract Example 5

Jacques Derrida has written extensively on the symbolism and the metonymy of September 11. In this research, we critique Derrida’s position, on the grounds that terrorism is better understood from within a neo-realist framework. Derrida’s analysis lacks coherence, is pompous and verbose, and is unnecessarily abstract when considering the need for a cogent counterterrorism strategy.

Like most descriptive abstracts, this encapsulates the main idea of the research but does not necessarily follow the same format as you might use in an informative abstract. Whereas an informative abstract follows the chronological format used in the paper you present, with introduction, methods, findings, and conclusion, a descriptive abstract only focuses on the main idea.

Descriptive Abstract Example 6

The Five Factor model of personality has been well established in the literature and is one of the most reliable and valid methods of assessing success. In this study, we use the Five Factor model to show when the qualities of neuroticism and introversion, which have been typically linked with low rates of success, are actually correlated with achievement in certain job sectors. Implications and suggestions for clinicians are discussed.

This descriptive abstract does not discuss the methodology used in the research, which is what differentiates it from an informative abstract. However, the description does include the basic elements contained in the report.

Descriptive Abstract Example 7

This is a case study of a medium-sized company, analyzing the competencies required for entering into the Indian retail market. Focusing on Mumbai and Bangalore, the expansion into these markets reveals potential challenges for European firms. A comparison case with a failed expansion into Wuhan, China is given, offering an explanation for how there are no global cross-cultural competencies that can be applied in all cases.

While this descriptive abstract shows the reader what the paper addresses, the methods and results are omitted. A descriptive abstract is shorter than an informative abstract.

Which Type of Abstract Should I Use?

Check with your professors or academic advisors, or with the editor of the peer-reviewed journal before determining which type of abstract is right for you.

If you have conducted original empirical research in the social sciences, you will most likely want to use an informative abstract.

However, when you are writing about the arts or humanities, a descriptive abstract might work best.

What Information Should I Include in An Abstract?

The information you include in the abstract will depend on the substantive content of your report.

Consider breaking down your abstract into five separate components, corresponding roughly with the structure of your original research.

You can write one or two sentences on each of these sections:

For Original Empirical Research

1. Background/Introductory Sentence

If you have conducted, or are going to conduct, an original research, then consider the following elements for your abstract:

What was your hypothesis?

What has the previous literature said about your subject?

What was the gap in the literature you are filling with your research?

What are the research questions?

What problem are you trying to solve?

What theoretical viewpoint or approach did you take?

What was your research design (qualitative, quantitative, multi-factorial, mixed-methods)?

What was the setting? Did you conduct a clinical analysis? Or did you conduct a systematic review of literature or a meta-analysis of data?

How many subjects were there?

How did you collect data?

How did you analyze the data?

What methodological weaknesses need to be mentioned?

III. Results

If this was a qualitative study, what were the major findings?

If this was a quantitative study, what were the major findings? Was there an alpha coefficient? What was the standard deviation?

Were the results statistically significant?

1. Discussion

Did the results prove or disprove the hypothesis ?

Were the results significant enough to inform future research?

How do your results link up with previous research? Does your research confirm or go beyond prior literature?

1. Conclusions/Recommendations

What do your results say about the research question or problem statement?

If you had to make a policy recommendation or offer suggestions to other scholars, what would you say?

Are there any concluding thoughts or overarching impressions?

Writing Abstracts for Literary Criticism and Humanities Research

Writing abstracts for research that is not empirical in nature does not involve the same steps as you might use when composing an abstract for the sciences or social sciences.

When writing an abstract for the arts and humanities, consider the following outline, writing one or two sentences for each section:

1. Background/Introduction

What other scholars have said before.

Why you agree or disagree.

Why this is important to study.

1. Your methods or approach

How did you conduct your research?

Did you analyze a specific text, case study, or work of art?

Are you comparing and contrasting?

What philosophical or theoretical model did you use?

III. Findings

What did you discover in the course of your research?

1. Discussion/Conclusion

How are your findings meaningful?

What new discoveries have you made?

How does your work contribute to the discourse?

General Tips for Writing Abstracts

The best way to improve your abstract writing skills is to read more abstracts. When you read other abstracts, you will understand more about what is expected, and what you should include or leave out from the abstract.

Reading abstracts helps you become more familiar with the tone and style, as well as the structure of abstracts.

Write your abstract after you have completed your research.

Many successful abstracts actually take the first sentence from each section of your research, such as the introduction/background, review of literature, methods, results, discussion, and conclusion.

Although it is a good idea to write the results of your original research, avoid giving too much detail. Instead, focus on what really matters.

A good abstract is like an elevator pitch.

While there is no absolute rule for how long an abstract should be, a general rule of thumb is around 100-150 words. However, some descriptive abstracts may be shorter than that, and some informative abstracts could be longer.

How to Write a Synopsis

Writing a synopsis involves summarizing a work’s key elements, including the narrative arc, major plot points, character development, rising action, and plot twists. Here’s a step-by-step guide on how to create a compelling synopsis.

• Outline the Narrative Arc: Start by defining your story’s beginning, middle, and end. This includes the introduction, rising action, climax, falling action, and resolution.
• Identify Major Plot Points: Major plot points are crucial events that propel your story forward. Identify these critical moments and explain how they contribute to the narrative arc.
• Discuss Character Development: Characters are the backbone of your story. Describe your characters at the start of the story and demonstrate how they evolve by the end.
• Illustrate Rising Action: The rising action is a series of events that lead to the climax of your story. Ensure to discuss these events and how they build suspense and momentum.
• Include Plot Twists: If your story has unexpected turns or surprises, highlight these plot twists in your synopsis. However, ensure these twists aren’t revealed too abruptly.

Remember, a synopsis should provide a complete overview of your story. It’s different from a teaser or back cover blurb — your objective isn’t to create suspense, but to succinctly present the whole narrative.

How Long Should a Summary Be

The length of a summary varies based on the complexity and length of the original work. However, as a rule of thumb, a summary should ideally be no more than 10-15% of the original text’s word count. This ensures you cover the significant plot points, character development, narrative arc, rising action, and plot twists without going into excessive detail.

For instance, if you’re summarizing a 300-page novel, your summary may be about 30 pages. If you’re summarizing a short 5-page article, a half-page to one-page summary should suffice.

Remember, the goal of a summary is to condense the source material, maintaining the core ideas and crucial information while trimming unnecessary details. Always aim for brevity and clarity in your summaries.

Abstracts are even shorter versions of executive summaries. Although abstracts are brief and seem relatively easy, they can be challenging to write. If you are struggling to write your abstract, just consider the main ideas of your original research paper and pretend that you are summarizing that research for a friend.

If you would like more examples of strong abstracts in your field of research, or need help composing your abstract or conducting research, call a writing tutor.

“Abstracts,” (n.d.). The Writing Center. https://writingcenter.unc.edu/tips-and-tools/abstracts/

Koopman, P. (1997). How to write an abstract. https://users.ece.cmu.edu/~koopman/essays/abstract.html

University of Massachusetts, Amherst (n.d.). Writing an abstract.

“Writing Report Abstracts,” (n.d.). Purdue Online Writing Lab. https://owl.english.purdue.edu/owl/resource/656/1/

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Abstract Writing: A Step-by-Step Guide With Tips & Examples

Table of Contents

Introduction

Abstracts of research papers have always played an essential role in describing your research concisely and clearly to researchers and editors of journals, enticing them to continue reading. However, with the widespread availability of scientific databases, the need to write a convincing abstract is more crucial now than during the time of paper-bound manuscripts.

Abstracts serve to "sell" your research and can be compared with your "executive outline" of a resume or, rather, a formal summary of the critical aspects of your work. Also, it can be the "gist" of your study. Since most educational research is done online, it's a sign that you have a shorter time for impressing your readers, and have more competition from other abstracts that are available to be read.

The APCI (Academic Publishing and Conferences International) articulates 12 issues or points considered during the final approval process for conferences & journals and emphasises the importance of writing an abstract that checks all these boxes (12 points). Since it's the only opportunity you have to captivate your readers, you must invest time and effort in creating an abstract that accurately reflects the critical points of your research.

With that in mind, let’s head over to understand and discover the core concept and guidelines to create a substantial abstract. Also, learn how to organise the ideas or plots into an effective abstract that will be awe-inspiring to the readers you want to reach.

What is Abstract? Definition and Overview

The word "Abstract' is derived from Latin abstractus meaning "drawn off." This etymological meaning also applies to art movements as well as music, like abstract expressionism. In this context, it refers to the revealing of the artist's intention.

Based on this, you can determine the meaning of an abstract: A condensed research summary. It must be self-contained and independent of the body of the research. However, it should outline the subject, the strategies used to study the problem, and the methods implemented to attain the outcomes. The specific elements of the study differ based on the area of study; however, together, it must be a succinct summary of the entire research paper.

Abstracts are typically written at the end of the paper, even though it serves as a prologue. In general, the abstract must be in a position to:

• Describe the paper.
• Identify the problem or the issue at hand.
• Explain to the reader the research process, the results you came up with, and what conclusion you've reached using these results.
• Include keywords to guide your strategy and the content.

Furthermore, the abstract you submit should not reflect upon any of  the following elements:

• Examine, analyse or defend the paper or your opinion.
• What you want to study, achieve or discover.
• Be redundant or irrelevant.

After reading an abstract, your audience should understand the reason - what the research was about in the first place, what the study has revealed and how it can be utilised or can be used to benefit others. You can understand the importance of abstract by knowing the fact that the abstract is the most frequently read portion of any research paper. In simpler terms, it should contain all the main points of the research paper.

What is the Purpose of an Abstract?

Abstracts are typically an essential requirement for research papers; however, it's not an obligation to preserve traditional reasons without any purpose. Abstracts allow readers to scan the text to determine whether it is relevant to their research or studies. The abstract allows other researchers to decide if your research paper can provide them with some additional information. A good abstract paves the interest of the audience to pore through your entire paper to find the content or context they're searching for.

Abstract writing is essential for indexing, as well. The Digital Repository of academic papers makes use of abstracts to index the entire content of academic research papers. Like meta descriptions in the regular Google outcomes, abstracts must include keywords that help researchers locate what they seek.

Types of Abstract

Informative and Descriptive are two kinds of abstracts often used in scientific writing.

A descriptive abstract gives readers an outline of the author's main points in their study. The reader can determine if they want to stick to the research work, based on their interest in the topic. An abstract that is descriptive is similar to the contents table of books, however, the format of an abstract depicts complete sentences encapsulated in one paragraph. It is unfortunate that the abstract can't be used as a substitute for reading a piece of writing because it's just an overview, which omits readers from getting an entire view. Also, it cannot be a way to fill in the gaps the reader may have after reading this kind of abstract since it does not contain crucial information needed to evaluate the article.

To conclude, a descriptive abstract is:

• A simple summary of the task, just summarises the work, but some researchers think it is much more of an outline
• Typically, the length is approximately 100 words. It is too short when compared to an informative abstract.
• A brief explanation but doesn't provide the reader with the complete information they need;
• An overview that omits conclusions and results

An informative abstract is a comprehensive outline of the research. There are times when people rely on the abstract as an information source. And the reason is why it is crucial to provide entire data of particular research. A well-written, informative abstract could be a good substitute for the remainder of the paper on its own.

A well-written abstract typically follows a particular style. The author begins by providing the identifying information, backed by citations and other identifiers of the papers. Then, the major elements are summarised to make the reader aware of the study. It is followed by the methodology and all-important findings from the study. The conclusion then presents study results and ends the abstract with a comprehensive summary.

In a nutshell, an informative abstract:

• Has a length that can vary, based on the subject, but is not longer than 300 words.
• Contains all the content-like methods and intentions
• Offers evidence and possible recommendations.

Informative Abstracts are more frequent than descriptive abstracts because of their extensive content and linkage to the topic specifically. You should select different types of abstracts to papers based on their length: informative abstracts for extended and more complex abstracts and descriptive ones for simpler and shorter research papers.

What are the Characteristics of a Good Abstract?

• A good abstract clearly defines the goals and purposes of the study.
• It should clearly describe the research methodology with a primary focus on data gathering, processing, and subsequent analysis.
• A good abstract should provide specific research findings.
• It presents the principal conclusions of the systematic study.
• It should be concise, clear, and relevant to the field of study.
• A well-designed abstract should be unifying and coherent.
• It is easy to grasp and free of technical jargon.
• It is written impartially and objectively.

What are the various sections of an ideal Abstract?

By now, you must have gained some concrete idea of the essential elements that your abstract needs to convey . Accordingly, the information is broken down into six key sections of the abstract, which include:

An Introduction or Background

Research methodology, objectives and goals, limitations.

Let's go over them in detail.

The introduction, also known as background, is the most concise part of your abstract. Ideally, it comprises a couple of sentences. Some researchers only write one sentence to introduce their abstract. The idea behind this is to guide readers through the key factors that led to your study.

It's understandable that this information might seem difficult to explain in a couple of sentences. For example, think about the following two questions like the background of your study:

• What is currently available about the subject with respect to the paper being discussed?
• What isn't understood about this issue? (This is the subject of your research)

While writing the abstract’s introduction, make sure that it is not lengthy. Because if it crosses the word limit, it may eat up the words meant to be used for providing other key information.

Research methodology is where you describe the theories and techniques you used in your research. It is recommended that you describe what you have done and the method you used to get your thorough investigation results. Certainly, it is the second-longest paragraph in the abstract.

In the research methodology section, it is essential to mention the kind of research you conducted; for instance, qualitative research or quantitative research (this will guide your research methodology too) . If you've conducted quantitative research, your abstract should contain information like the sample size, data collection method, sampling techniques, and duration of the study. Likewise, your abstract should reflect observational data, opinions, questionnaires (especially the non-numerical data) if you work on qualitative research.

The research objectives and goals speak about what you intend to accomplish with your research. The majority of research projects focus on the long-term effects of a project, and the goals focus on the immediate, short-term outcomes of the research. It is possible to summarise both in just multiple sentences.

In stating your objectives and goals, you give readers a picture of the scope of the study, its depth and the direction your research ultimately follows. Your readers can evaluate the results of your research against the goals and stated objectives to determine if you have achieved the goal of your research.

In the end, your readers are more attracted by the results you've obtained through your study. Therefore, you must take the time to explain each relevant result and explain how they impact your research. The results section exists as the longest in your abstract, and nothing should diminish its reach or quality.

One of the most important things you should adhere to is to spell out details and figures on the results of your research.

Instead of making a vague assertion such as, "We noticed that response rates varied greatly between respondents with high incomes and those with low incomes", Try these: "The response rate was higher for high-income respondents than those with lower incomes (59 30 percent vs. 30 percent in both cases; P<0.01)."

You're likely to encounter certain obstacles during your research. It could have been during data collection or even during conducting the sample . Whatever the issue, it's essential to inform your readers about them and their effects on the research.

Research limitations offer an opportunity to suggest further and deep research. If, for instance, you were forced to change for convenient sampling and snowball samples because of difficulties in reaching well-suited research participants, then you should mention this reason when you write your research abstract. In addition, a lack of prior studies on the subject could hinder your research.

Your conclusion should include the same number of sentences to wrap the abstract as the introduction. The majority of researchers offer an idea of the consequences of their research in this case.

Your conclusion should include three essential components:

• A significant take-home message.
• Corresponding important findings.
• The Interpretation.

Even though the conclusion of your abstract needs to be brief, it can have an enormous influence on the way that readers view your research. Therefore, make use of this section to reinforce the central message from your research. Be sure that your statements reflect the actual results and the methods you used to conduct your research.

Good Abstract Examples

Abstract example #1.

Children’s consumption behavior in response to food product placements in movies.

The abstract:

"Almost all research into the effects of brand placements on children has focused on the brand's attitudes or behavior intentions. Based on the significant differences between attitudes and behavioral intentions on one hand and actual behavior on the other hand, this study examines the impact of placements by brands on children's eating habits. Children aged 6-14 years old were shown an excerpt from the popular film Alvin and the Chipmunks and were shown places for the item Cheese Balls. Three different versions were developed with no placements, one with moderately frequent placements and the third with the highest frequency of placement. The results revealed that exposure to high-frequency places had a profound effect on snack consumption, however, there was no impact on consumer attitudes towards brands or products. The effects were not dependent on the age of the children. These findings are of major importance to researchers studying consumer behavior as well as nutrition experts as well as policy regulators."

Abstract Example #2

Social comparisons on social media: The impact of Facebook on young women’s body image concerns and mood. The abstract:

"The research conducted in this study investigated the effects of Facebook use on women's moods and body image if the effects are different from an internet-based fashion journal and if the appearance comparison tendencies moderate one or more of these effects. Participants who were female ( N = 112) were randomly allocated to spend 10 minutes exploring their Facebook account or a magazine's website or an appearance neutral control website prior to completing state assessments of body dissatisfaction, mood, and differences in appearance (weight-related and facial hair, face, and skin). Participants also completed a test of the tendency to compare appearances. The participants who used Facebook were reported to be more depressed than those who stayed on the control site. In addition, women who have the tendency to compare appearances reported more facial, hair and skin-related issues following Facebook exposure than when they were exposed to the control site. Due to its popularity it is imperative to conduct more research to understand the effect that Facebook affects the way people view themselves."

Abstract Example #3

The Relationship Between Cell Phone Use and Academic Performance in a Sample of U.S. College Students

"The cellphone is always present on campuses of colleges and is often utilised in situations in which learning takes place. The study examined the connection between the use of cell phones and the actual grades point average (GPA) after adjusting for predictors that are known to be a factor. In the end 536 students in the undergraduate program from 82 self-reported majors of an enormous, public institution were studied. Hierarchical analysis ( R 2 = .449) showed that use of mobile phones is significantly ( p < .001) and negative (b equal to -.164) connected to the actual college GPA, after taking into account factors such as demographics, self-efficacy in self-regulated learning, self-efficacy to improve academic performance, and the actual high school GPA that were all important predictors ( p < .05). Therefore, after adjusting for other known predictors increasing cell phone usage was associated with lower academic performance. While more research is required to determine the mechanisms behind these results, they suggest the need to educate teachers and students to the possible academic risks that are associated with high-frequency mobile phone usage."

Quick tips on writing a good abstract

There exists a common dilemma among early age researchers whether to write the abstract at first or last? However, it's recommended to compose your abstract when you've completed the research since you'll have all the information to give to your readers. You can, however, write a draft at the beginning of your research and add in any gaps later.

If you find abstract writing a herculean task, here are the few tips to help you with it:

1. Always develop a framework to support your abstract

Before writing, ensure you create a clear outline for your abstract. Divide it into sections and draw the primary and supporting elements in each one. You can include keywords and a few sentences that convey the essence of your message.

2. Review Other Abstracts

Abstracts are among the most frequently used research documents, and thousands of them were written in the past. Therefore, prior to writing yours, take a look at some examples from other abstracts. There are plenty of examples of abstracts for dissertations in the dissertation and thesis databases.

3. Avoid Jargon To the Maximum

When you write your abstract, focus on simplicity over formality. You should  write in simple language, and avoid excessive filler words or ambiguous sentences. Keep in mind that your abstract must be readable to those who aren't acquainted with your subject.

4. Focus on Your Research

It's a given fact that the abstract you write should be about your research and the findings you've made. It is not the right time to mention secondary and primary data sources unless it's absolutely required.

Conclusion: How to Structure an Interesting Abstract?

Abstracts are a short outline of your essay. However, it's among the most important, if not the most important. The process of writing an abstract is not straightforward. A few early-age researchers tend to begin by writing it, thinking they are doing it to "tease" the next step (the document itself). However, it is better to treat it as a spoiler.

The simple, concise style of the abstract lends itself to a well-written and well-investigated study. If your research paper doesn't provide definitive results, or the goal of your research is questioned, so will the abstract. Thus, only write your abstract after witnessing your findings and put your findings in the context of a larger scenario.

The process of writing an abstract can be daunting, but with these guidelines, you will succeed. The most efficient method of writing an excellent abstract is to centre the primary points of your abstract, including the research question and goals methods, as well as key results.

Interested in learning more about dedicated research solutions? Go to the SciSpace product page to find out how our suite of products can help you simplify your research workflows so you can focus on advancing science.

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Research Paper Abstract – Writing Guide and Examples

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Research Paper Abstract

Research Paper Abstract is a brief summary of a research pape r that describes the study’s purpose, methods, findings, and conclusions . It is often the first section of the paper that readers encounter, and its purpose is to provide a concise and accurate overview of the paper’s content. The typical length of an abstract is usually around 150-250 words, and it should be written in a concise and clear manner.

Research Paper Abstract Structure

The structure of a research paper abstract usually includes the following elements:

• Background or Introduction: Briefly describe the problem or research question that the study addresses.
• Methods : Explain the methodology used to conduct the study, including the participants, materials, and procedures.
• Results : Summarize the main findings of the study, including statistical analyses and key outcomes.
• Conclusions : Discuss the implications of the study’s findings and their significance for the field, as well as any limitations or future directions for research.
• Keywords : List a few keywords that describe the main topics or themes of the research.

How to Write Research Paper Abstract

Here are the steps to follow when writing a research paper abstract:

• Start by reading your paper: Before you write an abstract, you should have a complete understanding of your paper. Read through the paper carefully, making sure you understand the purpose, methods, results, and conclusions.
• Identify the key components : Identify the key components of your paper, such as the research question, methods used, results obtained, and conclusion reached.
• Write a draft: Write a draft of your abstract, using concise and clear language. Make sure to include all the important information, but keep it short and to the point. A good rule of thumb is to keep your abstract between 150-250 words.
• Use clear and concise language : Use clear and concise language to explain the purpose of your study, the methods used, the results obtained, and the conclusions drawn.
• Emphasize your findings: Emphasize your findings in the abstract, highlighting the key results and the significance of your study.
• Revise and edit: Once you have a draft, revise and edit it to ensure that it is clear, concise, and free from errors.
• Check the formatting: Finally, check the formatting of your abstract to make sure it meets the requirements of the journal or conference where you plan to submit it.

Research Paper Abstract Examples

Research Paper Abstract Examples could be following:

Title : “The Effectiveness of Cognitive-Behavioral Therapy for Treating Anxiety Disorders: A Meta-Analysis”

Abstract : This meta-analysis examines the effectiveness of cognitive-behavioral therapy (CBT) in treating anxiety disorders. Through the analysis of 20 randomized controlled trials, we found that CBT is a highly effective treatment for anxiety disorders, with large effect sizes across a range of anxiety disorders, including generalized anxiety disorder, panic disorder, and social anxiety disorder. Our findings support the use of CBT as a first-line treatment for anxiety disorders and highlight the importance of further research to identify the mechanisms underlying its effectiveness.

Title : “Exploring the Role of Parental Involvement in Children’s Education: A Qualitative Study”

Abstract : This qualitative study explores the role of parental involvement in children’s education. Through in-depth interviews with 20 parents of children in elementary school, we found that parental involvement takes many forms, including volunteering in the classroom, helping with homework, and communicating with teachers. We also found that parental involvement is influenced by a range of factors, including parent and child characteristics, school culture, and socio-economic status. Our findings suggest that schools and educators should prioritize building strong partnerships with parents to support children’s academic success.

Title : “The Impact of Exercise on Cognitive Function in Older Adults: A Systematic Review and Meta-Analysis”

Abstract : This paper presents a systematic review and meta-analysis of the existing literature on the impact of exercise on cognitive function in older adults. Through the analysis of 25 randomized controlled trials, we found that exercise is associated with significant improvements in cognitive function, particularly in the domains of executive function and attention. Our findings highlight the potential of exercise as a non-pharmacological intervention to support cognitive health in older adults.

When to Write Research Paper Abstract

The abstract of a research paper should typically be written after you have completed the main body of the paper. This is because the abstract is intended to provide a brief summary of the key points and findings of the research, and you can’t do that until you have completed the research and written about it in detail.

Once you have completed your research paper, you can begin writing your abstract. It is important to remember that the abstract should be a concise summary of your research paper, and should be written in a way that is easy to understand for readers who may not have expertise in your specific area of research.

Purpose of Research Paper Abstract

The purpose of a research paper abstract is to provide a concise summary of the key points and findings of a research paper. It is typically a brief paragraph or two that appears at the beginning of the paper, before the introduction, and is intended to give readers a quick overview of the paper’s content.

The abstract should include a brief statement of the research problem, the methods used to investigate the problem, the key results and findings, and the main conclusions and implications of the research. It should be written in a clear and concise manner, avoiding jargon and technical language, and should be understandable to a broad audience.

The abstract serves as a way to quickly and easily communicate the main points of a research paper to potential readers, such as academics, researchers, and students, who may be looking for information on a particular topic. It can also help researchers determine whether a paper is relevant to their own research interests and whether they should read the full paper.

About the author

Muhammad Hassan

Researcher, Academic Writer, Web developer

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How to Write an Abstract (With Examples)

Sarah Oakley

Table of Contents

What is an abstract in a paper, how long should an abstract be, 5 steps for writing an abstract, examples of an abstract, how prowritingaid can help you write an abstract.

If you are writing a scientific research paper or a book proposal, you need to know how to write an abstract, which summarizes the contents of the paper or book.

When researchers are looking for peer-reviewed papers to use in their studies, the first place they will check is the abstract to see if it applies to their work. Therefore, your abstract is one of the most important parts of your entire paper.

In this article, we’ll explain what an abstract is, what it should include, and how to write one.

An abstract is a concise summary of the details within a report. Some abstracts give more details than others, but the main things you’ll be talking about are why you conducted the research, what you did, and what the results show.

When a reader is deciding whether to read your paper completely, they will first look at the abstract. You need to be concise in your abstract and give the reader the most important information so they can determine if they want to read the whole paper.

Remember that an abstract is the last thing you’ll want to write for the research paper because it directly references parts of the report. If you haven’t written the report, you won’t know what to include in your abstract.

If you are writing a paper for a journal or an assignment, the publication or academic institution might have specific formatting rules for how long your abstract should be. However, if they don’t, most abstracts are between 150 and 300 words long.

A short word count means your writing has to be precise and without filler words or phrases. Once you’ve written a first draft, you can always use an editing tool, such as ProWritingAid, to identify areas where you can reduce words and increase readability.

If your abstract is over the word limit, and you’ve edited it but still can’t figure out how to reduce it further, your abstract might include some things that aren’t needed. Here’s a list of three elements you can remove from your abstract:

Discussion : You don’t need to go into detail about the findings of your research because your reader will find your discussion within the paper.

Definition of terms : Your readers are interested the field you are writing about, so they are likely to understand the terms you are using. If not, they can always look them up. Your readers do not expect you to give a definition of terms in your abstract.

References and citations : You can mention there have been studies that support or have inspired your research, but you do not need to give details as the reader will find them in your bibliography.

Good writing = better grades

ProWritingAid will help you improve the style, strength, and clarity of all your assignments.

If you’ve never written an abstract before, and you’re wondering how to write an abstract, we’ve got some steps for you to follow. It’s best to start with planning your abstract, so we’ve outlined the details you need to include in your plan before you write.

Remember to consider your audience when you’re planning and writing your abstract. They are likely to skim read your abstract, so you want to be sure your abstract delivers all the information they’re expecting to see at key points.

1. What Should an Abstract Include?

Abstracts have a lot of information to cover in a short number of words, so it’s important to know what to include. There are three elements that need to be present in your abstract:

Your context is the background for where your research sits within your field of study. You should briefly mention any previous scientific papers or experiments that have led to your hypothesis and how research develops in those studies.

Your hypothesis is your prediction of what your study will show. As you are writing your abstract after you have conducted your research, you should still include your hypothesis in your abstract because it shows the motivation for your paper.

Throughout your abstract, you also need to include keywords and phrases that will help researchers to find your article in the databases they’re searching. Make sure the keywords are specific to your field of study and the subject you’re reporting on, otherwise your article might not reach the relevant audience.

2. Can You Use First Person in an Abstract?

You might think that first person is too informal for a research paper, but it’s not. Historically, writers of academic reports avoided writing in first person to uphold the formality standards of the time. However, first person is more accepted in research papers in modern times.

If you’re still unsure whether to write in first person for your abstract, refer to any style guide rules imposed by the journal you’re writing for or your teachers if you are writing an assignment.

3. Abstract Structure

Some scientific journals have strict rules on how to structure an abstract, so it’s best to check those first. If you don’t have any style rules to follow, try using the IMRaD structure, which stands for Introduction, Methodology, Results, and Discussion.

Following the IMRaD structure, start with an introduction. The amount of background information you should include depends on your specific research area. Adding a broad overview gives you less room to include other details. Remember to include your hypothesis in this section.

The next part of your abstract should cover your methodology. Try to include the following details if they apply to your study:

What type of research was conducted?

How were the test subjects sampled?

What were the sample sizes?

What was done to each group?

How long was the experiment?

How was data recorded and interpreted?

Following the methodology, include a sentence or two about the results, which is where your reader will determine if your research supports or contradicts their own investigations.

The results are also where most people will want to find out what your outcomes were, even if they are just mildly interested in your research area. You should be specific about all the details but as concise as possible.

The last few sentences are your conclusion. It needs to explain how your findings affect the context and whether your hypothesis was correct. Include the primary take-home message, additional findings of importance, and perspective. Also explain whether there is scope for further research into the subject of your report.

Your conclusion should be honest and give the reader the ultimate message that your research shows. Readers trust the conclusion, so make sure you’re not fabricating the results of your research. Some readers won’t read your entire paper, but this section will tell them if it’s worth them referencing it in their own study.

4. How to Start an Abstract

The first line of your abstract should give your reader the context of your report by providing background information. You can use this sentence to imply the motivation for your research.

You don’t need to use a hook phrase or device in your first sentence to grab the reader’s attention. Your reader will look to establish relevance quickly, so readability and clarity are more important than trying to persuade the reader to read on.

5. How to Format an Abstract

Most abstracts use the same formatting rules, which help the reader identify the abstract so they know where to look for it.

Here’s a list of formatting guidelines for writing an abstract:

Stick to one paragraph

Use block formatting with no indentation at the beginning

Put your abstract straight after the title and acknowledgements pages

Use present or past tense, not future tense

There are two primary types of abstract you could write for your paper—descriptive and informative.

An informative abstract is the most common, and they follow the structure mentioned previously. They are longer than descriptive abstracts because they cover more details.

Descriptive abstracts differ from informative abstracts, as they don’t include as much discussion or detail. The word count for a descriptive abstract is between 50 and 150 words.

Here is an example of an informative abstract:

A growing trend exists for authors to employ a more informal writing style that uses “we” in academic writing to acknowledge one’s stance and engagement. However, few studies have compared the ways in which the first-person pronoun “we” is used in the abstracts and conclusions of empirical papers. To address this lacuna in the literature, this study conducted a systematic corpus analysis of the use of “we” in the abstracts and conclusions of 400 articles collected from eight leading electrical and electronic (EE) engineering journals. The abstracts and conclusions were extracted to form two subcorpora, and an integrated framework was applied to analyze and seek to explain how we-clusters and we-collocations were employed. Results revealed whether authors’ use of first-person pronouns partially depends on a journal policy. The trend of using “we” showed that a yearly increase occurred in the frequency of “we” in EE journal papers, as well as the existence of three “we-use” types in the article conclusions and abstracts: exclusive, inclusive, and ambiguous. Other possible “we-use” alternatives such as “I” and other personal pronouns were used very rarely—if at all—in either section. These findings also suggest that the present tense was used more in article abstracts, but the present perfect tense was the most preferred tense in article conclusions. Both research and pedagogical implications are proffered and critically discussed.

Wang, S., Tseng, W.-T., & Johanson, R. (2021). To We or Not to We: Corpus-Based Research on First-Person Pronoun Use in Abstracts and Conclusions. SAGE Open, 11(2).

Here is an example of a descriptive abstract:

From the 1850s to the present, considerable criminological attention has focused on the development of theoretically-significant systems for classifying crime. This article reviews and attempts to evaluate a number of these efforts, and we conclude that further work on this basic task is needed. The latter part of the article explicates a conceptual foundation for a crime pattern classification system, and offers a preliminary taxonomy of crime.

Farr, K. A., & Gibbons, D. C. (1990). Observations on the Development of Crime Categories. International Journal of Offender Therapy and Comparative Criminology, 34(3), 223–237.

If you want to ensure your abstract is grammatically correct and easy to read, you can use ProWritingAid to edit it. The software integrates with Microsoft Word, Google Docs, and most web browsers, so you can make the most of it wherever you’re writing your paper.

Before you edit with ProWritingAid, make sure the suggestions you are seeing are relevant for your document by changing the document type to “Abstract” within the Academic writing style section.

You can use the Readability report to check your abstract for places to improve the clarity of your writing. Some suggestions might show you where to remove words, which is great if you’re over your word count.

We hope the five steps and examples we’ve provided help you write a great abstract for your research paper.

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• How to Write an Abstract

Expedite peer review, increase search-ability, and set the tone for your study

The abstract is your chance to let your readers know what they can expect from your article. Learn how to write a clear, and concise abstract that will keep your audience reading.

How your abstract impacts editorial evaluation and future readership

After the title , the abstract is the second-most-read part of your article. A good abstract can help to expedite peer review and, if your article is accepted for publication, it’s an important tool for readers to find and evaluate your work. Editors use your abstract when they first assess your article. Prospective reviewers see it when they decide whether to accept an invitation to review. Once published, the abstract gets indexed in PubMed and Google Scholar , as well as library systems and other popular databases. Like the title, your abstract influences keyword search results. Readers will use it to decide whether to read the rest of your article. Other researchers will use it to evaluate your work for inclusion in systematic reviews and meta-analysis. It should be a concise standalone piece that accurately represents your research. 

What to include in an abstract

The main challenge you’ll face when writing your abstract is keeping it concise AND fitting in all the information you need. Depending on your subject area the journal may require a structured abstract following specific headings. A structured abstract helps your readers understand your study more easily. If your journal doesn’t require a structured abstract it’s still a good idea to follow a similar format, just present the abstract as one paragraph without headings. 

Background or Introduction – What is currently known? Start with a brief, 2 or 3 sentence, introduction to the research area. 

Objectives or Aims – What is the study and why did you do it? Clearly state the research question you’re trying to answer.

Methods – What did you do? Explain what you did and how you did it. Include important information about your methods, but avoid the low-level specifics. Some disciplines have specific requirements for abstract methods. 

• CONSORT for randomized trials.
• STROBE for observational studies
• PRISMA for systematic reviews and meta-analyses

Results – What did you find? Briefly give the key findings of your study. Include key numeric data (including confidence intervals or p values), where possible.

Conclusions – What did you conclude? Tell the reader why your findings matter, and what this could mean for the ‘bigger picture’ of this area of research. 

Writing tips

The main challenge you may find when writing your abstract is keeping it concise AND convering all the information you need to.

• Keep it concise and to the point. Most journals have a maximum word count, so check guidelines before you write the abstract to save time editing it later.
• Write for your audience. Are they specialists in your specific field? Are they cross-disciplinary? Are they non-specialists? If you’re writing for a general audience, or your research could be of interest to the public keep your language as straightforward as possible. If you’re writing in English, do remember that not all of your readers will necessarily be native English speakers.
• Focus on key results, conclusions and take home messages.
• Write your paper first, then create the abstract as a summary.
• Check the journal requirements before you write your abstract, eg. required subheadings.
• Include keywords or phrases to help readers search for your work in indexing databases like PubMed or Google Scholar.
• Double and triple check your abstract for spelling and grammar errors. These kind of errors can give potential reviewers the impression that your research isn’t sound, and can make it easier to find reviewers who accept the invitation to review your manuscript. Your abstract should be a taste of what is to come in the rest of your article.

Don’t

• Sensationalize your research.
• Speculate about where this research might lead in the future.
• Use abbreviations or acronyms (unless absolutely necessary or unless they’re widely known, eg. DNA).
• Repeat yourself unnecessarily, eg. “Methods: We used X technique. Results: Using X technique, we found…”
• Contradict anything in the rest of your manuscript.
• Include content that isn’t also covered in the main manuscript.
• Include citations or references.

Tip: How to edit your work

Editing is challenging, especially if you are acting as both a writer and an editor. Read our guidelines for advice on how to refine your work, including useful tips for setting your intentions, re-review, and consultation with colleagues.

• How to Write a Great Title
• How to Write Your Methods
• How to Report Statistics
• How to Write Discussions and Conclusions
• How to Edit Your Work

The contents of the Peer Review Center are also available as a live, interactive training session, complete with slides, talking points, and activities. …

The contents of the Writing Center are also available as a live, interactive training session, complete with slides, talking points, and activities. …

There’s a lot to consider when deciding where to submit your work. Learn how to choose a journal that will help your study reach its audience, while reflecting your values as a researcher…

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• How to Write an Abstract | Steps & Examples

How to Write an Abstract | Steps & Examples

Published on 1 March 2019 by Shona McCombes . Revised on 10 October 2022 by Eoghan Ryan.

An abstract is a short summary of a longer work (such as a dissertation or research paper ). The abstract concisely reports the aims and outcomes of your research, so that readers know exactly what your paper is about.

Although the structure may vary slightly depending on your discipline, your abstract should describe the purpose of your work, the methods you’ve used, and the conclusions you’ve drawn.

One common way to structure your abstract is to use the IMRaD structure. This stands for:

• Introduction

Abstracts are usually around 100–300 words, but there’s often a strict word limit, so make sure to check the relevant requirements.

In a dissertation or thesis , include the abstract on a separate page, after the title page and acknowledgements but before the table of contents .

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Table of contents

Abstract example, when to write an abstract, step 1: introduction, step 2: methods, step 3: results, step 4: discussion, tips for writing an abstract, frequently asked questions about abstracts.

Hover over the different parts of the abstract to see how it is constructed.

This paper examines the role of silent movies as a mode of shared experience in the UK during the early twentieth century. At this time, high immigration rates resulted in a significant percentage of non-English-speaking citizens. These immigrants faced numerous economic and social obstacles, including exclusion from public entertainment and modes of discourse (newspapers, theater, radio).

Incorporating evidence from reviews, personal correspondence, and diaries, this study demonstrates that silent films were an affordable and inclusive source of entertainment. It argues for the accessible economic and representational nature of early cinema. These concerns are particularly evident in the low price of admission and in the democratic nature of the actors’ exaggerated gestures, which allowed the plots and action to be easily grasped by a diverse audience despite language barriers.

Keywords: silent movies, immigration, public discourse, entertainment, early cinema, language barriers.

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You will almost always have to include an abstract when:

• Completing a thesis or dissertation
• Submitting a research paper to an academic journal
• Writing a book proposal
• Applying for research grants

It’s easiest to write your abstract last, because it’s a summary of the work you’ve already done. Your abstract should:

• Be a self-contained text, not an excerpt from your paper
• Be fully understandable on its own
• Reflect the structure of your larger work

Start by clearly defining the purpose of your research. What practical or theoretical problem does the research respond to, or what research question did you aim to answer?

You can include some brief context on the social or academic relevance of your topic, but don’t go into detailed background information. If your abstract uses specialised terms that would be unfamiliar to the average academic reader or that have various different meanings, give a concise definition.

After identifying the problem, state the objective of your research. Use verbs like “investigate,” “test,” “analyse,” or “evaluate” to describe exactly what you set out to do.

This part of the abstract can be written in the present or past simple tense  but should never refer to the future, as the research is already complete.

• This study will investigate the relationship between coffee consumption and productivity.
• This study investigates the relationship between coffee consumption and productivity.

Next, indicate the research methods that you used to answer your question. This part should be a straightforward description of what you did in one or two sentences. It is usually written in the past simple tense, as it refers to completed actions.

• Structured interviews will be conducted with 25 participants.
• Structured interviews were conducted with 25 participants.

Don’t evaluate validity or obstacles here — the goal is not to give an account of the methodology’s strengths and weaknesses, but to give the reader a quick insight into the overall approach and procedures you used.

Next, summarise the main research results . This part of the abstract can be in the present or past simple tense.

• Our analysis has shown a strong correlation between coffee consumption and productivity.
• Our analysis shows a strong correlation between coffee consumption and productivity.
• Our analysis showed a strong correlation between coffee consumption and productivity.

Depending on how long and complex your research is, you may not be able to include all results here. Try to highlight only the most important findings that will allow the reader to understand your conclusions.

Finally, you should discuss the main conclusions of your research : what is your answer to the problem or question? The reader should finish with a clear understanding of the central point that your research has proved or argued. Conclusions are usually written in the present simple tense.

• We concluded that coffee consumption increases productivity.
• We conclude that coffee consumption increases productivity.

If there are important limitations to your research (for example, related to your sample size or methods), you should mention them briefly in the abstract. This allows the reader to accurately assess the credibility and generalisability of your research.

If your aim was to solve a practical problem, your discussion might include recommendations for implementation. If relevant, you can briefly make suggestions for further research.

If your paper will be published, you might have to add a list of keywords at the end of the abstract. These keywords should reference the most important elements of the research to help potential readers find your paper during their own literature searches.

Be aware that some publication manuals, such as APA Style , have specific formatting requirements for these keywords.

It can be a real challenge to condense your whole work into just a couple of hundred words, but the abstract will be the first (and sometimes only) part that people read, so it’s important to get it right. These strategies can help you get started.

Read other abstracts

The best way to learn the conventions of writing an abstract in your discipline is to read other people’s. You probably already read lots of journal article abstracts while conducting your literature review —try using them as a framework for structure and style.

You can also find lots of dissertation abstract examples in thesis and dissertation databases .

Reverse outline

Not all abstracts will contain precisely the same elements. For longer works, you can write your abstract through a process of reverse outlining.

For each chapter or section, list keywords and draft one to two sentences that summarise the central point or argument. This will give you a framework of your abstract’s structure. Next, revise the sentences to make connections and show how the argument develops.

Write clearly and concisely

A good abstract is short but impactful, so make sure every word counts. Each sentence should clearly communicate one main point.

To keep your abstract or summary short and clear:

• Avoid passive sentences: Passive constructions are often unnecessarily long. You can easily make them shorter and clearer by using the active voice.
• Avoid long sentences: Substitute longer expressions for concise expressions or single words (e.g., “In order to” for “To”).
• Avoid obscure jargon: The abstract should be understandable to readers who are not familiar with your topic.
• Avoid repetition and filler words: Replace nouns with pronouns when possible and eliminate unnecessary words.
• Avoid detailed descriptions: An abstract is not expected to provide detailed definitions, background information, or discussions of other scholars’ work. Instead, include this information in the body of your thesis or paper.

If you’re struggling to edit down to the required length, you can get help from expert editors with Scribbr’s professional proofreading services .

Check your formatting

If you are writing a thesis or dissertation or submitting to a journal, there are often specific formatting requirements for the abstract—make sure to check the guidelines and format your work correctly. For APA research papers you can follow the APA abstract format .

Checklist: Abstract

The word count is within the required length, or a maximum of one page.

The abstract appears after the title page and acknowledgements and before the table of contents .

I have clearly stated my research problem and objectives.

I have briefly described my methodology .

I have summarized the most important results .

I have stated my main conclusions .

I have mentioned any important limitations and recommendations.

The abstract can be understood by someone without prior knowledge of the topic.

You've written a great abstract! Use the other checklists to continue improving your thesis or dissertation.

An abstract is a concise summary of an academic text (such as a journal article or dissertation ). It serves two main purposes:

• To help potential readers determine the relevance of your paper for their own research.
• To communicate your key findings to those who don’t have time to read the whole paper.

Abstracts are often indexed along with keywords on academic databases, so they make your work more easily findable. Since the abstract is the first thing any reader sees, it’s important that it clearly and accurately summarises the contents of your paper.

An abstract for a thesis or dissertation is usually around 150–300 words. There’s often a strict word limit, so make sure to check your university’s requirements.

The abstract is the very last thing you write. You should only write it after your research is complete, so that you can accurately summarize the entirety of your thesis or paper.

Avoid citing sources in your abstract . There are two reasons for this:

• The abstract should focus on your original research, not on the work of others.
• The abstract should be self-contained and fully understandable without reference to other sources.

There are some circumstances where you might need to mention other sources in an abstract: for example, if your research responds directly to another study or focuses on the work of a single theorist. In general, though, don’t include citations unless absolutely necessary.

The abstract appears on its own page, after the title page and acknowledgements but before the table of contents .

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How to Write an Abstract for a Research Paper | Examples

What is a research paper abstract?

Research paper abstracts summarize your study quickly and succinctly to journal editors and researchers and prompt them to read further. But with the ubiquity of online publication databases, writing a compelling abstract is even more important today than it was in the days of bound paper manuscripts.

Abstracts exist to “sell”  your work, and they could thus be compared to the “executive summary” of a business resume: an official briefing on what is most important about your research. Or the “gist” of your research. With the majority of academic transactions being conducted online, this means that you have even less time to impress readers–and increased competition in terms of other abstracts out there to read.

The APCI (Academic Publishing and Conferences International) notes that there are  12 questions or “points” considered in the selection process  for journals and conferences and stresses the importance of having an abstract that ticks all of these boxes. Because it is often the ONLY chance you have to convince readers to keep reading, it is important that you spend time and energy crafting an abstract that faithfully represents the central parts of your study and captivates your audience.

With that in mind, follow these suggestions when structuring and writing your abstract, and learn how exactly to put these ideas into a solid abstract that will captivate your target readers.

Before Writing Your Abstract

How long should an abstract be.

All abstracts are written with the same essential objective: to give a summary of your study. But there are two basic styles of abstract: descriptive and informative . Here is a brief delineation of the two:

Of the two types of abstracts, informative abstracts are much more common, and they are widely used for submission to journals and conferences. Informative abstracts apply to lengthier and more technical research and are common in the sciences, engineering, and psychology, while descriptive abstracts are more likely used in humanities and social science papers. The best method of determining which abstract type you need to use is to follow the instructions for journal submissions and to read as many other published articles in those journals as possible.

Research Abstract Guidelines and Requirements

As any article about research writing will tell you, authors must always closely follow the specific guidelines and requirements indicated in the Guide for Authors section of their target journal’s website. The same kind of adherence to conventions should be applied to journal publications, for consideration at a conference, and even when completing a class assignment.

Each publisher has particular demands when it comes to formatting and structure. Here are some common questions addressed in the journal guidelines:

• Is there a maximum or minimum word/character length?
• What are the style and formatting requirements?
• What is the appropriate abstract type?
• Are there any specific content or organization rules that apply?

There are of course other rules to consider when composing a research paper abstract. But if you follow the stated rules the first time you submit your manuscript, you can avoid your work being thrown in the “circular file” right off the bat.

Identify Your Target Readership

The main purpose of your abstract is to lead researchers to the full text of your research paper. In scientific journals, abstracts let readers decide whether the research discussed is relevant to their own interests or study. Abstracts also help readers understand your main argument quickly. Consider these questions as you write your abstract:

• Are other academics in your field the main target of your study?
• Will your study perhaps be useful to members of the general public?
• Do your study results include the wider implications presented in the abstract?

Outlining and Writing Your Abstract

What to include in an abstract.

Just as your  research paper title  should cover as much ground as possible in a few short words, your abstract must cover  all  parts of your study in order to fully explain your paper and research. Because it must accomplish this task in the space of only a few hundred words, it is important not to include ambiguous references or phrases that will confuse the reader or mislead them about the content and objectives of your research. Follow these  dos  and  don’ts  when it comes to what kind of writing to include:

• Avoid acronyms or abbreviations since these will need to be explained in order to make sense to the reader, which takes up valuable abstract space. Instead, explain these terms in the Introduction section of the main text.
• Only use references to people or other works if they are well-known. Otherwise, avoid referencing anything outside of your study in the abstract.
• Never include tables, figures, sources, or long quotations in your abstract; you will have plenty of time to present and refer to these in the body of your paper.

Use keywords in your abstract to focus your topic

A vital search tool is the research paper keywords section, which lists the most relevant terms directly underneath the abstract. Think of these keywords as the “tubes” that readers will seek and enter—via queries on databases and search engines—to ultimately land at their destination, which is your paper. Your abstract keywords should thus be words that are commonly used in searches but should also be highly relevant to your work and found in the text of your abstract. Include 5 to 10 important words or short phrases central to your research in both the abstract and the keywords section.

For example, if you are writing a paper on the prevalence of obesity among lower classes that crosses international boundaries, you should include terms like “obesity,” “prevalence,” “international,” “lower classes,” and “cross-cultural.” These are terms that should net a wide array of people interested in your topic of study. Look at our nine rules for choosing keywords for your research paper if you need more input on this.

Research Paper Abstract Structure

As mentioned above, the abstract (especially the informative abstract) acts as a surrogate or synopsis of your research paper, doing almost as much work as the thousands of words that follow it in the body of the main text. In the hard sciences and most social sciences, the abstract includes the following sections and organizational schema.

Each section is quite compact—only a single sentence or two, although there is room for expansion if one element or statement is particularly interesting or compelling. As the abstract is almost always one long paragraph, the individual sections should naturally merge into one another to create a holistic effect. Use the following as a checklist to ensure that you have included all of the necessary content in your abstract.

1) Identify your purpose and motivation

So your research is about rabies in Brazilian squirrels. Why is this important? You should start your abstract by explaining why people should care about this study—why is it significant to your field and perhaps to the wider world? And what is the exact purpose of your study; what are you trying to achieve? Start by answering the following questions:

• What made you decide to do this study or project?
• Why is this study important to your field or to the lay reader?
• Why should someone read your entire article?

In summary, the first section of your abstract should include the importance of the research and its impact on related research fields or on the wider scientific domain.

2) Explain the research problem you are addressing

Stating the research problem that your study addresses is the corollary to why your specific study is important and necessary. For instance, even if the issue of “rabies in Brazilian squirrels” is important, what is the problem—the “missing piece of the puzzle”—that your study helps resolve?

You can combine the problem with the motivation section, but from a perspective of organization and clarity, it is best to separate the two. Here are some precise questions to address:

• What is your research trying to better understand or what problem is it trying to solve?
• What is the scope of your study—does it try to explain something general or specific?
• What is your central claim or argument?

3) Discuss your research approach

Your specific study approach is detailed in the Methods and Materials section .  You have already established the importance of the research, your motivation for studying this issue, and the specific problem your paper addresses. Now you need to discuss  how  you solved or made progress on this problem—how you conducted your research. If your study includes your own work or that of your team, describe that here. If in your paper you reviewed the work of others, explain this here. Did you use analytic models? A simulation? A double-blind study? A case study? You are basically showing the reader the internal engine of your research machine and how it functioned in the study. Be sure to:

• Detail your research—include methods/type of the study, your variables, and the extent of the work
• Briefly present evidence to support your claim
• Highlight your most important sources

4) Briefly summarize your results

Here you will give an overview of the outcome of your study. Avoid using too many vague qualitative terms (e.g, “very,” “small,” or “tremendous”) and try to use at least some quantitative terms (i.e., percentages, figures, numbers). Save your qualitative language for the conclusion statement. Answer questions like these:

• What did your study yield in concrete terms (e.g., trends, figures, correlation between phenomena)?
• How did your results compare to your hypothesis? Was the study successful?
• Where there any highly unexpected outcomes or were they all largely predicted?

5) State your conclusion

In the last section of your abstract, you will give a statement about the implications and  limitations of the study . Be sure to connect this statement closely to your results and not the area of study in general. Are the results of this study going to shake up the scientific world? Will they impact how people see “Brazilian squirrels”? Or are the implications minor? Try not to boast about your study or present its impact as  too  far-reaching, as researchers and journals will tend to be skeptical of bold claims in scientific papers. Answer one of these questions:

• What are the exact effects of these results on my field? On the wider world?
• What other kind of study would yield further solutions to problems?
• What other information is needed to expand knowledge in this area?

After Completing the First Draft of Your Abstract

Revise your abstract.

The abstract, like any piece of academic writing, should be revised before being considered complete. Check it for  grammatical and spelling errors  and make sure it is formatted properly.

Get feedback from a peer

Getting a fresh set of eyes to review your abstract is a great way to find out whether you’ve summarized your research well. Find a reader who understands research papers but is not an expert in this field or is not affiliated with your study. Ask your reader to summarize what your study is about (including all key points of each section). This should tell you if you have communicated your key points clearly.

In addition to research peers, consider consulting with a professor or even a specialist or generalist writing center consultant about your abstract. Use any resource that helps you see your work from another perspective.

Consider getting professional editing and proofreading

While peer feedback is quite important to ensure the effectiveness of your abstract content, it may be a good idea to find an academic editor  to fix mistakes in grammar, spelling, mechanics, style, or formatting. The presence of basic errors in the abstract may not affect your content, but it might dissuade someone from reading your entire study. Wordvice provides English editing services that both correct objective errors and enhance the readability and impact of your work.

Additional Abstract Rules and Guidelines

Write your abstract after completing your paper.

Although the abstract goes at the beginning of your manuscript, it does not merely introduce your research topic (that is the job of the title), but rather summarizes your entire paper. Writing the abstract last will ensure that it is complete and consistent with the findings and statements in your paper.

Keep your content in the correct order

Both questions and answers should be organized in a standard and familiar way to make the content easier for readers to absorb. Ideally, it should mimic the overall format of your essay and the classic “introduction,” “body,” and “conclusion” form, even if the parts are not neatly divided as such.

Write the abstract from scratch

Because the abstract is a self-contained piece of writing viewed separately from the body of the paper, you should write it separately as well. Never copy and paste direct quotes from the paper and avoid paraphrasing sentences in the paper. Using new vocabulary and phrases will keep your abstract interesting and free of redundancies while conserving space.

Don’t include too many details in the abstract

Again, the density of your abstract makes it incompatible with including specific points other than possibly names or locations. You can make references to terms, but do not explain or define them in the abstract. Try to strike a balance between being specific to your study and presenting a relatively broad overview of your work.

Wordvice Resources

If you think your abstract is fine now but you need input on abstract writing or require English editing services (including paper editing ), then head over to the Wordvice academic resources page, where you will find many more articles, for example on writing the Results , Methods , and Discussion sections of your manuscript, on choosing a title for your paper , or on how to finalize your journal submission with a strong cover letter .    

What this handout is about

This handout provides definitions and examples of the two main types of abstracts: descriptive and informative. It also provides guidelines for constructing an abstract and general tips for you to keep in mind when drafting. Finally, it includes a few examples of abstracts broken down into their component parts.

What is an abstract?

An abstract is a self-contained, short, and powerful statement that describes a larger work. Components vary according to discipline. An abstract of a social science or scientific work may contain the scope, purpose, results, and contents of the work. An abstract of a humanities work may contain the thesis, background, and conclusion of the larger work. An abstract is not a review, nor does it evaluate the work being abstracted. While it contains key words found in the larger work, the abstract is an original document rather than an excerpted passage.

Why write an abstract?

You may write an abstract for various reasons. The two most important are selection and indexing. Abstracts allow readers who may be interested in a longer work to quickly decide whether it is worth their time to read it. Also, many online databases use abstracts to index larger works. Therefore, abstracts should contain keywords and phrases that allow for easy searching.

Say you are beginning a research project on how Brazilian newspapers helped Brazil’s ultra-liberal president Luiz Ignácio da Silva wrest power from the traditional, conservative power base. A good first place to start your research is to search Dissertation Abstracts International for all dissertations that deal with the interaction between newspapers and politics. “Newspapers and politics” returned 569 hits. A more selective search of “newspapers and Brazil” returned 22 hits. That is still a fair number of dissertations. Titles can sometimes help winnow the field, but many titles are not very descriptive. For example, one dissertation is titled “Rhetoric and Riot in Rio de Janeiro.” It is unclear from the title what this dissertation has to do with newspapers in Brazil. One option would be to download or order the entire dissertation on the chance that it might speak specifically to the topic. A better option is to read the abstract. In this case, the abstract reveals the main focus of the dissertation:

This dissertation examines the role of newspaper editors in the political turmoil and strife that characterized late First Empire Rio de Janeiro (1827-1831). Newspaper editors and their journals helped change the political culture of late First Empire Rio de Janeiro by involving the people in the discussion of state. This change in political culture is apparent in Emperor Pedro I’s gradual loss of control over the mechanisms of power. As the newspapers became more numerous and powerful, the Emperor lost his legitimacy in the eyes of the people. To explore the role of the newspapers in the political events of the late First Empire, this dissertation analyzes all available newspapers published in Rio de Janeiro from 1827 to 1831. Newspapers and their editors were leading forces in the effort to remove power from the hands of the ruling elite and place it under the control of the people. In the process, newspapers helped change how politics operated in the constitutional monarchy of Brazil.

From this abstract you now know that although the dissertation has nothing to do with modern Brazilian politics, it does cover the role of newspapers in changing traditional mechanisms of power. After reading the abstract, you can make an informed judgment about whether the dissertation would be worthwhile to read.

Besides selection, the other main purpose of the abstract is for indexing. Most article databases in the online catalog of the library enable you to search abstracts. This allows for quick retrieval by users and limits the extraneous items recalled by a “full-text” search. However, for an abstract to be useful in an online retrieval system, it must incorporate the key terms that a potential researcher would use to search. For example, if you search Dissertation Abstracts International using the keywords “France” “revolution” and “politics,” the search engine would search through all the abstracts in the database that included those three words. Without an abstract, the search engine would be forced to search titles, which, as we have seen, may not be fruitful, or else search the full text. It’s likely that a lot more than 60 dissertations have been written with those three words somewhere in the body of the entire work. By incorporating keywords into the abstract, the author emphasizes the central topics of the work and gives prospective readers enough information to make an informed judgment about the applicability of the work.

When do people write abstracts?

• when submitting articles to journals, especially online journals
• when applying for research grants
• when writing a book proposal
• when completing the Ph.D. dissertation or M.A. thesis
• when writing a proposal for a conference paper
• when writing a proposal for a book chapter

Most often, the author of the entire work (or prospective work) writes the abstract. However, there are professional abstracting services that hire writers to draft abstracts of other people’s work. In a work with multiple authors, the first author usually writes the abstract. Undergraduates are sometimes asked to draft abstracts of books/articles for classmates who have not read the larger work.

Types of abstracts

There are two types of abstracts: descriptive and informative. They have different aims, so as a consequence they have different components and styles. There is also a third type called critical, but it is rarely used. If you want to find out more about writing a critique or a review of a work, see the UNC Writing Center handout on writing a literature review . If you are unsure which type of abstract you should write, ask your instructor (if the abstract is for a class) or read other abstracts in your field or in the journal where you are submitting your article.

Descriptive abstracts

A descriptive abstract indicates the type of information found in the work. It makes no judgments about the work, nor does it provide results or conclusions of the research. It does incorporate key words found in the text and may include the purpose, methods, and scope of the research. Essentially, the descriptive abstract describes the work being abstracted. Some people consider it an outline of the work, rather than a summary. Descriptive abstracts are usually very short—100 words or less.

Informative abstracts

The majority of abstracts are informative. While they still do not critique or evaluate a work, they do more than describe it. A good informative abstract acts as a surrogate for the work itself. That is, the writer presents and explains all the main arguments and the important results and evidence in the complete article/paper/book. An informative abstract includes the information that can be found in a descriptive abstract (purpose, methods, scope) but also includes the results and conclusions of the research and the recommendations of the author. The length varies according to discipline, but an informative abstract is rarely more than 10% of the length of the entire work. In the case of a longer work, it may be much less.

Here are examples of a descriptive and an informative abstract of this handout on abstracts . Descriptive abstract:

The two most common abstract types—descriptive and informative—are described and examples of each are provided.

Informative abstract:

Abstracts present the essential elements of a longer work in a short and powerful statement. The purpose of an abstract is to provide prospective readers the opportunity to judge the relevance of the longer work to their projects. Abstracts also include the key terms found in the longer work and the purpose and methods of the research. Authors abstract various longer works, including book proposals, dissertations, and online journal articles. There are two main types of abstracts: descriptive and informative. A descriptive abstract briefly describes the longer work, while an informative abstract presents all the main arguments and important results. This handout provides examples of various types of abstracts and instructions on how to construct one.

Which type should I use?

Your best bet in this case is to ask your instructor or refer to the instructions provided by the publisher. You can also make a guess based on the length allowed; i.e., 100-120 words = descriptive; 250+ words = informative.

How do I write an abstract?

The format of your abstract will depend on the work being abstracted. An abstract of a scientific research paper will contain elements not found in an abstract of a literature article, and vice versa. However, all abstracts share several mandatory components, and there are also some optional parts that you can decide to include or not. When preparing to draft your abstract, keep the following key process elements in mind:

• Reason for writing: What is the importance of the research? Why would a reader be interested in the larger work?
• Problem: What problem does this work attempt to solve? What is the scope of the project? What is the main argument/thesis/claim?
• Methodology: An abstract of a scientific work may include specific models or approaches used in the larger study. Other abstracts may describe the types of evidence used in the research.
• Results: Again, an abstract of a scientific work may include specific data that indicates the results of the project. Other abstracts may discuss the findings in a more general way.
• Implications: What changes should be implemented as a result of the findings of the work? How does this work add to the body of knowledge on the topic?

(This list of elements is adapted with permission from Philip Koopman, “How to Write an Abstract.” )

All abstracts include:

• A full citation of the source, preceding the abstract.
• The most important information first.
• The same type and style of language found in the original, including technical language.
• Key words and phrases that quickly identify the content and focus of the work.
• Clear, concise, and powerful language.

Abstracts may include:

• The thesis of the work, usually in the first sentence.
• Background information that places the work in the larger body of literature.
• The same chronological structure as the original work.

How not to write an abstract:

• Do not refer extensively to other works.
• Do not add information not contained in the original work.
• Do not define terms.

If you are abstracting your own writing

When abstracting your own work, it may be difficult to condense a piece of writing that you have agonized over for weeks (or months, or even years) into a 250-word statement. There are some tricks that you could use to make it easier, however.

Reverse outlining:

This technique is commonly used when you are having trouble organizing your own writing. The process involves writing down the main idea of each paragraph on a separate piece of paper– see our short video . For the purposes of writing an abstract, try grouping the main ideas of each section of the paper into a single sentence. Practice grouping ideas using webbing or color coding .

For a scientific paper, you may have sections titled Purpose, Methods, Results, and Discussion. Each one of these sections will be longer than one paragraph, but each is grouped around a central idea. Use reverse outlining to discover the central idea in each section and then distill these ideas into one statement.

Cut and paste:

To create a first draft of an abstract of your own work, you can read through the entire paper and cut and paste sentences that capture key passages. This technique is useful for social science research with findings that cannot be encapsulated by neat numbers or concrete results. A well-written humanities draft will have a clear and direct thesis statement and informative topic sentences for paragraphs or sections. Isolate these sentences in a separate document and work on revising them into a unified paragraph.

If you are abstracting someone else’s writing

When abstracting something you have not written, you cannot summarize key ideas just by cutting and pasting. Instead, you must determine what a prospective reader would want to know about the work. There are a few techniques that will help you in this process:

Identify key terms:

Search through the entire document for key terms that identify the purpose, scope, and methods of the work. Pay close attention to the Introduction (or Purpose) and the Conclusion (or Discussion). These sections should contain all the main ideas and key terms in the paper. When writing the abstract, be sure to incorporate the key terms.

Highlight key phrases and sentences:

Instead of cutting and pasting the actual words, try highlighting sentences or phrases that appear to be central to the work. Then, in a separate document, rewrite the sentences and phrases in your own words.

Don’t look back:

After reading the entire work, put it aside and write a paragraph about the work without referring to it. In the first draft, you may not remember all the key terms or the results, but you will remember what the main point of the work was. Remember not to include any information you did not get from the work being abstracted.

Revise, revise, revise

No matter what type of abstract you are writing, or whether you are abstracting your own work or someone else’s, the most important step in writing an abstract is to revise early and often. When revising, delete all extraneous words and incorporate meaningful and powerful words. The idea is to be as clear and complete as possible in the shortest possible amount of space. The Word Count feature of Microsoft Word can help you keep track of how long your abstract is and help you hit your target length.

Example 1: Humanities abstract

Kenneth Tait Andrews, “‘Freedom is a constant struggle’: The dynamics and consequences of the Mississippi Civil Rights Movement, 1960-1984” Ph.D. State University of New York at Stony Brook, 1997 DAI-A 59/02, p. 620, Aug 1998

This dissertation examines the impacts of social movements through a multi-layered study of the Mississippi Civil Rights Movement from its peak in the early 1960s through the early 1980s. By examining this historically important case, I clarify the process by which movements transform social structures and the constraints movements face when they try to do so. The time period studied includes the expansion of voting rights and gains in black political power, the desegregation of public schools and the emergence of white-flight academies, and the rise and fall of federal anti-poverty programs. I use two major research strategies: (1) a quantitative analysis of county-level data and (2) three case studies. Data have been collected from archives, interviews, newspapers, and published reports. This dissertation challenges the argument that movements are inconsequential. Some view federal agencies, courts, political parties, or economic elites as the agents driving institutional change, but typically these groups acted in response to the leverage brought to bear by the civil rights movement. The Mississippi movement attempted to forge independent structures for sustaining challenges to local inequities and injustices. By propelling change in an array of local institutions, movement infrastructures had an enduring legacy in Mississippi.

Now let’s break down this abstract into its component parts to see how the author has distilled his entire dissertation into a ~200 word abstract.

What the dissertation does This dissertation examines the impacts of social movements through a multi-layered study of the Mississippi Civil Rights Movement from its peak in the early 1960s through the early 1980s. By examining this historically important case, I clarify the process by which movements transform social structures and the constraints movements face when they try to do so.

How the dissertation does it The time period studied in this dissertation includes the expansion of voting rights and gains in black political power, the desegregation of public schools and the emergence of white-flight academies, and the rise and fall of federal anti-poverty programs. I use two major research strategies: (1) a quantitative analysis of county-level data and (2) three case studies.

What materials are used Data have been collected from archives, interviews, newspapers, and published reports.

Conclusion This dissertation challenges the argument that movements are inconsequential. Some view federal agencies, courts, political parties, or economic elites as the agents driving institutional change, but typically these groups acted in response to movement demands and the leverage brought to bear by the civil rights movement. The Mississippi movement attempted to forge independent structures for sustaining challenges to local inequities and injustices. By propelling change in an array of local institutions, movement infrastructures had an enduring legacy in Mississippi.

Keywords social movements Civil Rights Movement Mississippi voting rights desegregation

Example 2: Science Abstract

Luis Lehner, “Gravitational radiation from black hole spacetimes” Ph.D. University of Pittsburgh, 1998 DAI-B 59/06, p. 2797, Dec 1998

The problem of detecting gravitational radiation is receiving considerable attention with the construction of new detectors in the United States, Europe, and Japan. The theoretical modeling of the wave forms that would be produced in particular systems will expedite the search for and analysis of detected signals. The characteristic formulation of GR is implemented to obtain an algorithm capable of evolving black holes in 3D asymptotically flat spacetimes. Using compactification techniques, future null infinity is included in the evolved region, which enables the unambiguous calculation of the radiation produced by some compact source. A module to calculate the waveforms is constructed and included in the evolution algorithm. This code is shown to be second-order convergent and to handle highly non-linear spacetimes. In particular, we have shown that the code can handle spacetimes whose radiation is equivalent to a galaxy converting its whole mass into gravitational radiation in one second. We further use the characteristic formulation to treat the region close to the singularity in black hole spacetimes. The code carefully excises a region surrounding the singularity and accurately evolves generic black hole spacetimes with apparently unlimited stability.

This science abstract covers much of the same ground as the humanities one, but it asks slightly different questions.

Why do this study The problem of detecting gravitational radiation is receiving considerable attention with the construction of new detectors in the United States, Europe, and Japan. The theoretical modeling of the wave forms that would be produced in particular systems will expedite the search and analysis of the detected signals.

What the study does The characteristic formulation of GR is implemented to obtain an algorithm capable of evolving black holes in 3D asymptotically flat spacetimes. Using compactification techniques, future null infinity is included in the evolved region, which enables the unambiguous calculation of the radiation produced by some compact source. A module to calculate the waveforms is constructed and included in the evolution algorithm.

Results This code is shown to be second-order convergent and to handle highly non-linear spacetimes. In particular, we have shown that the code can handle spacetimes whose radiation is equivalent to a galaxy converting its whole mass into gravitational radiation in one second. We further use the characteristic formulation to treat the region close to the singularity in black hole spacetimes. The code carefully excises a region surrounding the singularity and accurately evolves generic black hole spacetimes with apparently unlimited stability.

Keywords gravitational radiation (GR) spacetimes black holes

Works consulted

We consulted these works while writing this handout. This is not a comprehensive list of resources on the handout’s topic, and we encourage you to do your own research to find additional publications. Please do not use this list as a model for the format of your own reference list, as it may not match the citation style you are using. For guidance on formatting citations, please see the UNC Libraries citation tutorial . We revise these tips periodically and welcome feedback.

Belcher, Wendy Laura. 2009. Writing Your Journal Article in Twelve Weeks: A Guide to Academic Publishing Success. Thousand Oaks, CA: Sage Press.

Koopman, Philip. 1997. “How to Write an Abstract.” Carnegie Mellon University. October 1997. http://users.ece.cmu.edu/~koopman/essays/abstract.html .

Lancaster, F.W. 2003. Indexing And Abstracting in Theory and Practice , 3rd ed. London: Facet Publishing.

You may reproduce it for non-commercial use if you use the entire handout and attribute the source: The Writing Center, University of North Carolina at Chapel Hill

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How To Write an Abstract for Any Subject and Publication (With Examples)

Table of contents

Christian Rigg

An abstract is a short summary of a longer work, such as a study or research paper. The goal is to provide readers with an overview of the purpose, methodology, results, conclusion, and importance of this text.

As a writing coach and part-time academic editor and translator, I’ve read hundreds of abstracts and helped authors draft and refine dozens more. I’ve found that, when writing an abstract, the greatest difficulty lies in balancing brevity, detail, and accessibility.

Fortunately, there’s a simple formula you can use to write a solid abstract for publication, regardless of the subject. What’s more, you can leverage AI to help you write a clear, concise abstract — without losing your voice or sounding unprofessional.

Below you’ll find step-by-step instructions, best practices, examples, and a helpful checklist. 

Key Takeaways

• An abstract offers a succinct overview of the aims, results, and importance of your research.
• Check submission guidelines, write clearly and concisely, and use language to “guide” readers through your abstract. 
• The IMRaD (Introduction, Methodology, Results, and Discussion) approach is simple and effective. 
• More and more authors are using AI to do the heavy lifting. With the right prompts, AI can save you time and create a cohesive abstract.

Writing an abstract: First steps and best practices

Keep the following in mind as you write your abstract:

• If you’re submitting to a publication , check for specific guidelines regarding overall length, format, keywords, and the presence or absence of section headings (e.g. “Purpose”). Follow these guidelines exactly.
• Write concisely and clearly . If you struggle to write concisely, consider using an AI-writing assistant like Wordtune . Simply select text to receive suggestions on how to write a sentence or paragraph more concisely without losing any value.
• Make your abstract self-contained . Don’t refer to passages in your article or research. If you must include terms that your audience may not be familiar with, such as highly technical jargon or concepts borrowed from another field, offer a brief definition.
• Use connecting phrases like “for this reason,” “as a result,” and “this led us” to “guide” the reader through your abstract and help them see the connections between your research goal, methodology, results, and conclusions. ‍
• Read abstracts on similar studies . This gives you a good benchmark and can help you get started. If you’re submitting your abstract to a particular publication, it also gives you a good idea of the type of language and structure they prefer.

Get Wordtune for free > Get Wordtune for free >

How to write an abstract: The IMRaD Structure

IMRaD stands for Introduction, Methodology, Results, and Discussion (or Conclusion). 

It’s the most common way to structure a research paper and a very simple way to approach your abstract. In some cases, authors even include these section headings in their abstracts. 

Step One: Introduction

Length : About 25% of your abstract

Purpose : Provide context for your research and describe your research objectives. 

Start by introducing your topic. There are two main parts to this:

• Your research question stated simply and straightforwardly (what missing knowledge does your study aim to answer?). You can use words like “investigate,” “review,” “test,” “analyze,” “study,” and “evaluate” to make it clear how your work relates to the context.
• A brief overview of the academic, historical, social, or scientific context. This helps the reader understand the importance and relevance of your work. In many cases, starting with context before your research question makes more sense, so feel free to write in that order. 

Regarding context, consider the following: 

For example:

Psychologists and neuroscientists have long studied the role of sleep in the formation of new memories. Previous research into how sleep affects memory has often struggled because it’s difficult to measure the quality, stages, and overall impact of sleep accurately. As a result, there’s ongoing debate in the scientific community , and recent research suggests sleep may not be as important as researchers once thought. In this study, we review the evidence and offer a novel conclusion : the same mechanisms thought to mediate sleep-related memory formation also operate during waking hours, particularly quiet wakefulness.  In this example, several contextual cues are offered: it’s a long-standing topic in the literature; previous research is limited due to a specific issue , and there is active scientific debate . The section closes with the research aims: to review the evidence and offer a new conclusion. 

Step Two: Methodology

Purpose : Clearly describe what you did and highlight novelty. 

In this section, provide a clear description of your research methodology. While it’s important to be concise, make sure you’re not being vague. Mention specific frameworks and tools. 

‍ To explore the impact of social media on political engagement, we conducted a study with 200 participants, divided into two groups. The first was exposed to curated political content on social media, while the control group received a neutral feed. Our mixed-method approach combined quantitative engagement metrics analysis and qualitative interviews to assess changes in political participation.

There’s no need to provide an in-depth justification of your approach, although if it’s a novel one, it’s worth highlighting this and explaining what makes it appropriate. For example, " We chose this approach because it offers a clearer image of the structure of proteins involved in the transfer of electrons during cellular respiration ."

Finally, you can omit methodological limitations; we’ll cover these later. 

Step Three: Results

Length : About 35% of your abstract

Purpose : Provide a clear, specific account of your results. 

This section is arguably the most important (and interesting) part of your abstract.

Explain the results of your analysis in a specific and detailed fashion. This isn’t the time to be vague or bury the lead. For example:

“Our survey indicates a marked shift in sedimentary rock composition. In three locations, we observed significant erosion, and mineralogical analysis revealed a high concentration of quartz. Further analysis suggests two major events in the past 200 years, correlating with disturbances in the region.”

"Our survey of the Redstone Canyon region identified a marked shift in sedimentary rock composition from predominantly sandstone to shale, particularly evident in the lower strata. Quantitative analysis showed a 40% increase in shale content compared to previous surveys. In three distinct locations, we observed significant erosion, with up to two meters of topsoil displacement, primarily due to water runoff. Mineralogical analysis revealed an unexpectedly high concentration of quartz (up to 22%) in these eroded areas. Additionally, our seismic retrogression analysis suggests two major seismic events in the past 200 years, correlating with the observed stratification disturbances."

Incidentally, you don’t need to include all of your findings here, only those that will help the reader to understand the next section: your discussion and conclusion (i.e., what the results mean). This will help you keep the results section concise and relevant. 

Step Four: Discussion/Conclusion

Length : About 15%

Purpose : Present what new knowledge you’ve found and why it matters.

Bearing in mind your research question, give a clear account of your conclusions. What new knowledge has been gained? 

The simplest way to do this is in the present tense: “We conclude that…”

You should also briefly explain why this matters. What are the implications of your findings? Be specific and avoid making claims that aren’t directly supported by your research. 

If there are any important limitations (such as population or control group size), you can mention them now. This helps readers assess the credibility and generalizability of your findings. 

You can use these samples for inspiration.

They are divided into introduction , methodology , results , and conclusion.

The rising urbanization rate poses challenges to mental health, an issue garnering increasing attention in recent years. This study aims to analyze the impact of urban green spaces on the mental health of city dwellers. The focus is on how access to parks and natural environments within urban settings contributes to psychological well-being . For this purpose, we employed a cross-sectional survey methodology, targeting residents in three major cities with varying levels of green space availability. We used a combination of GIS mapping to determine green space distribution and structured questionnaires to assess mental health indicators among 1,000 participants . Our results show a clear correlation between access to green spaces and improved mental health outcomes. Residents with frequent access to parks reported 30% lower stress levels and a 25% reduction in symptoms related to anxiety and depression, compared to those with limited access. Additionally, our analysis revealed that green spaces in dense urban areas had a more significant impact than those in less populated districts . We conclude that urban green spaces play a crucial role in enhancing mental health. This underscores the importance of urban planning policies that prioritize green space development as a public health strategy. These findings have significant implications for city planning and public health policy, advocating for the integration of green spaces in urban development to foster mental well-being .

The phenomenon of antibiotic resistance is a growing concern in medical science. This study investigates the effectiveness of novel synthetic peptides as potential antibiotics against multi-drug resistant bacteria. The research specifically examines the impact of these peptides on the cellular integrity and replication processes of resistant bacterial strains . Our methodology involved in vitro testing of three newly synthesized peptides against a panel of bacteria known for high resistance to conventional antibiotics. The bacterial strains included methicillin-resistant Staphylococcus aureus (MRSA) and vancomycin-resistant Enterococci (VRE). We used a combination of microbiological assays and electron microscopy to evaluate the antibacterial activity and the cellular changes induced by the peptides . The results were promising, showing that two of the three peptides effectively inhibited the growth of MRSA and VRE at low concentrations. Electron microscopy revealed significant disruption of bacterial cell walls and membranes, leading to cell lysis. These peptides also demonstrated low toxicity in preliminary mammalian cell culture tests, suggesting a high therapeutic index . Our study provides promising evidence for the use of synthetic peptides in combating antibiotic-resistant bacteria. These findings open new avenues for developing effective treatments against infections caused by drug-resistant pathogens and highlight the potential of peptide-based therapies in future pharmaceutical applications .

The integration of artificial intelligence (AI) in education is a rapidly evolving area of study. This research explores the effectiveness of AI-driven personalized learning systems in enhancing student performance in high school mathematics. The study focuses on understanding how AI customization impacts learning outcomes compared to traditional teaching methods . We conducted a randomized controlled trial involving 500 high school students from five schools, divided into two groups. The experimental group used an AI-based learning platform that adapted to each student's learning pace and style, while the control group continued with standard classroom instruction. The study measured improvements in mathematical understanding and problem-solving skills over a six-month period . The results indicated a significant improvement in the AI group, with a 40% increase in test scores and a 35% rise in problem-solving abilities compared to the control group. Additionally, students using the AI system reported higher levels of engagement and satisfaction with the learning process . In conclusion, the use of AI-driven personalized learning systems shows considerable promise in enhancing educational outcomes in mathematics. This study suggests that AI personalization can be a valuable tool in modern educational strategies, potentially revolutionizing how subjects are taught and learned in schools .

What is the main objective of an abstract?

The goal of an abstract is to provide readers with a concise overview of the purpose, methodology, results, conclusion, and importance of a longer work, such as a research paper or study. 

How long should an abstract be?

Depending on the publication, an abstract should be anywhere from 150 to 250 words. 

What should an abstract include?

An abstract should include an introduction (context + research question), the methodology, the results, and a conclusion (what you found and why it matters).

IMRaD is a simple formula you can follow to write a great abstract for any topic and publication type. Simply follow the instructions above to write each section: Introduction, Methodology, Results, and Discussion/Conclusion.

Be careful to balance detail with brevity, as abstracts are meant to be a short overview of your study. If you struggle with writing concisely and clearly, consider using a writing aid like Wordtune to handle some of the heavy lifting. 

Want to learn more key writing tips? Check out these articles:

• How to Write Concisely and Effectively (+Examples)
• Transition Word Examples and How to Use Them Effectively
• How to Write a Research Paper (+Free AI Research Paper Writer)

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What Is a Research Abstract? 3 Effective Examples

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The abstract of a research paper provides a quick rundown or summary of the aim, method, and results of your research as well as what your findings mean. It breaks your research paper and questions into a quick, easy-to-read highlight. 

An abstract is different from an introduction . With an abstract, you're condensing thousands of words and giving a reader an idea of your research, findings, and outcomes, which helps them determine if it’s worth reading the actual piece. It also offers a perfect way for researchers to highlight key points.

See how to write an effective research abstract by exploring the components of several examples.

Components of a Research Abstract

Research abstracts can appear at nearly every level of writing, from high-school papers to more professional literature. They are extremely straightforward with very little room for opinion. 

The exact format will vary, but most abstracts are about one or two paragraphs (about 100 to 150 words each) in length. 

A general research abstract will include:

• the main goal of the paper
• data, research, and methods
• the outcome and significance

In APA format (which is the format of most research papers), abstracts have their own page and are placed immediately following the title page.

Real-World Research Paper Abstract Examples

To get a good understanding of what makes a good abstract, it can be helpful to look at some abstract examples in action. 

While the specific contents will differ, seeing some abstract examples can give you a better idea of how to approach and format your own abstract.

Psychological Research Abstract Example

In this abstract about video game addiction , you’ll see that the information follows a formal structure.

For example, the first sentence provides the topic of the research. It then breaks down who was in the study and how the study was conducted. 

The third and final section discusses the correlation of video games and college engagement, along with the validity of video game addiction. You’ll also notice the past tense wording since the abstract is created after the research is finished.

Video Game Addiction and College Performance Among Men This study explored the pattern of video game usage and video game addiction among male college students and examined how video game addiction was related to expectations of college engagement, college grade point average (GPA), and on-campus drug and alcohol violations. Participants were 477 male, first year students at a liberal arts college. In the week before the start of classes, participants were given two surveys: one of expected college engagement, and the second of video game usage, including a measure of video game addiction. Results suggested that video game addiction is (a) negatively correlated with expected college engagement, (b) negatively correlated with college GPA, even when controlling for high school GPA, and (c) negatively correlated with drug and alcohol violations that occurred during the first year in college. Results are discussed in terms of implications for male students' engagement and success in college, and in terms of the construct validity of video game addiction.

Technological Research Abstract Example

In this abstract about cell phone usage , the beginning breaks down the background information for the study. 

In the middle, you can see the parameters that were used for the research. It concludes with the findings and significance.

The Relationship Between Cell Phone Use and Academic Performance in a Sample of U.S. College Students The cell phone is ever-present on college campuses and is frequently used in settings where learning occurs. This study assessed the relationship between cell phone use and actual college grade point average (GPA) after controlling for known predictors. As such, 536 undergraduate students from 82 self-reported majors at a large, public university were sampled. A hierarchical regression (R2 = .449) demonstrated that cell phone use was significantly (p < .001) and negatively (β = −.164) related to actual college GPA after controlling for demographic variables, self-efficacy for self-regulated learning, self-efficacy for academic achievement, and actual high school GPA, which were all significant predictors (p < .05). Thus, after controlling for other established predictors, increased cell phone use was associated with decreased academic performance. Although more research is needed to identify the underlying mechanisms, findings suggest a need to sensitize students and educators about the potential academic risks associated with high-frequency cell phone use.

Original Research Paper Abstract Example

While a high-school or college research paper may not have the same stakes as a professional paper, the same rules still apply to write a good abstract.

This sample abstract clarifies the aim of the research to test sleep and student performance. It also specifies the method (the questionnaires), and briefly discusses the results and what those results could potentially be used for.

This research paper analyzes the correlation that exists between sleep and high school student performance in class. To answer this question, we compared academic performance against questionnaires that detailed the sleep schedules of 122 high school students. Our results showed that there was a positive correlation between poor academic performance and getting fewer than 8 hours of sleep a night. The results also revealed that poor sleep patterns can lead to concentration and behavior issues. The implications of this study could be used to promote high schoolers sleeping at least 8 hours a night.

This original abstract clarifies the aim of the research to test sleep and student performance. The method included the questionnaires, while the results clarified the correlation between the two factors being studied. The significance of how these results could be used rounds out the abstract. This offers the reader a clear outline of what they will find if they read the student research project paper.

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Writing an Abstract for a Research Paper: Guidelines, Examples, and Templates

There are six steps to writing a standard abstract. (1) Begin with a broad statement about your topic. Then, (2) state the problem or knowledge gap related to this topic that your study explores. After that, (3) describe what specific aspect of this problem you investigated, and (4) briefly explain how you went about doing this. After that, (5) describe the most meaningful outcome(s) of your study. Finally, (6) close your abstract by explaining the broad implication(s) of your findings.

In this article, I present step-by-step guidelines for writing an abstract for an academic paper. These guidelines are fo llowed by an example of a full abstract that follows these guidelines and a few fill-in-the-blank templates that you can use to write your own abstract.

Guidelines for Writing an Abstract

The basic structure of an abstract is illustrated below.

A standard abstract starts with a very general statement and becomes more specific with each sentence that follows until once again making a broad statement about the study’s implications at the end. Altogether, a standard abstract has six functions, which are described in detail below.

Start by making a broad statement about your topic.

The first sentence of your abstract should briefly describe a problem that is of interest to your readers. When writing this first sentence, you should think about who comprises your target audience and use terms that will appeal to this audience. If your opening sentence is too broad, it might lose the attention of potential readers because they will not know if your study is relevant to them.

Too broad : Maintaining an ideal workplace environment has a positive effect on employees.

The sentence above is so broad that it will not grab the reader’s attention. While it gives the reader some idea of the area of study, it doesn’t provide any details about the author’s topic within their research area. This can be fixed by inserting some keywords related to the topic (these are underlined in the revised example below).

Improved : Keeping the workplace environment at an ideal temperature positively affects the overall health of employees.

The revised sentence is much better, as it expresses two points about the research topic—namely, (i) what aspect of workplace environment was studied, (ii) what aspect of employees was observed. The mention of these aspects of the research will draw the attention of readers who are interested in them.

Describe the general problem that your paper addresses.

After describing your topic in the first sentence, you can then explain what aspect of this topic has motivated your research. Often, authors use this part of the abstract to describe the research gap that they identified and aimed to fill. These types of sentences are often characterized by the use of words such as “however,” “although,” “despite,” and so on.

However, a comprehensive understanding of how different workplace bullying experiences are associated with absenteeism is currently lacking.

The above example is typical of a sentence describing the problem that a study intends to tackle. The author has noticed that there is a gap in the research, and they briefly explain this gap here.

Although it has been established that quantity and quality of sleep can affect different types of task performance and personal health, the interactions between sleep habits and workplace behaviors have received very little attention.

The example above illustrates a case in which the author has accomplished two tasks with one sentence. The first part of the sentence (up until the comma) mentions the general topic that the research fits into, while the second part (after the comma) describes the general problem that the research addresses.

Express the specific problem investigated in your paper.

After describing the general problem that motivated your research, the next sentence should express the specific aspect of the problem that you investigated. Sentences of this type are often indicated by the use of phrases like “the purpose of this research is to,” “this paper is intended to,” or “this work aims to.”

Uninformative : However, a comprehensive understanding of how different workplace bullying experiences are associated with absenteeism is currently lacking. The present article aimed to provide new insights into the relationship between workplace bullying and absenteeism .

The second sentence in the above example is a mere rewording of the first sentence. As such, it adds nothing to the abstract. The second sentence should be more specific than the preceding one.

Improved : However, a comprehensive understanding of how different workplace bullying experiences are associated with absenteeism is currently lacking. The present article aimed to define various subtypes of workplace bullying and determine which subtypes tend to lead to absenteeism .

The second sentence of this passage is much more informative than in the previous example. This sentence lets the reader know exactly what they can expect from the full research article.

Explain how you attempted to resolve your study’s specific problem.

In this part of your abstract, you should attempt to describe your study’s methodology in one or two sentences. As such, you must be sure to include only the most important information about your method. At the same time, you must also be careful not to be too vague.

Too vague : We conducted multiple tests to examine changes in various factors related to well-being.

This description of the methodology is too vague. Instead of merely mentioning “tests” and “factors,” the author should note which specific tests were run and which factors were assessed.

Improved : Using data from BHIP completers, we conducted multiple one-way multivariate analyses of variance and follow-up univariate t-tests to examine changes in physical and mental health, stress, energy levels, social satisfaction, self-efficacy, and quality of life.

This sentence is very well-written. It packs a lot of specific information about the method into a single sentence. Also, it does not describe more details than are needed for an abstract.

Briefly tell the reader what you found by carrying out your study.

This is the most important part of the abstract—the other sentences in the abstract are there to explain why this one is relevant. When writing this sentence, imagine that someone has asked you, “What did you find in your research?” and that you need to answer them in one or two sentences.

Too vague : Consistently poor sleepers had more health risks and medical conditions than consistently optimal sleepers.

This sentence is okay, but it would be helpful to let the reader know which health risks and medical conditions were related to poor sleeping habits.

Improved : Consistently poor sleepers were more likely than consistently optimal sleepers to suffer from chronic abdominal pain, and they were at a higher risk for diabetes and heart disease.

This sentence is better, as the specific health conditions are named.

Finally, describe the major implication(s) of your study.

Most abstracts end with a short sentence that explains the main takeaway(s) that you want your audience to gain from reading your paper. Often, this sentence is addressed to people in power (e.g., employers, policymakers), and it recommends a course of action that such people should take based on the results.

Too broad : Employers may wish to make use of strategies that increase employee health.

This sentence is too broad to be useful. It does not give employers a starting point to implement a change.

Improved : Employers may wish to incorporate sleep education initiatives as part of their overall health and wellness strategies.

This sentence is better than the original, as it provides employers with a starting point—specifically, it invites employers to look up information on sleep education programs.

Abstract Example

The abstract produced here is from a paper published in Electronic Commerce Research and Applications . I have made slight alterations to the abstract so that this example fits the guidelines given in this article.

(1) Gamification can strengthen enjoyment and productivity in the workplace. (2) Despite this, research on gamification in the work context is still limited. (3) In this study, we investigated the effect of gamification on the workplace enjoyment and productivity of employees by comparing employees with leadership responsibilities to those without leadership responsibilities. (4) Work-related tasks were gamified using the habit-tracking game Habitica, and data from 114 employees were gathered using an online survey. (5) The results illustrated that employees without leadership responsibilities used work gamification as a trigger for self-motivation, whereas employees with leadership responsibilities used it to improve their health. (6) Work gamification positively affected work enjoyment for both types of employees and positively affected productivity for employees with leadership responsibilities. (7) Our results underline the importance of taking work-related variables into account when researching work gamification.

In Sentence (1), the author makes a broad statement about their topic. Notice how the nouns used (“gamification,” “enjoyment,” “productivity”) are quite general while still indicating the focus of the paper. The author uses Sentence (2) to very briefly state the problem that the research will address.

In Sentence (3), the author explains what specific aspects of the problem mentioned in Sentence (2) will be explored in the present work. Notice that the mention of leadership responsibilities makes Sentence (3) more specific than Sentence (2). Sentence (4) gets even more specific, naming the specific tools used to gather data and the number of participants.

Sentences (5) and (6) are similar, with each sentence describing one of the study’s main findings. Then, suddenly, the scope of the abstract becomes quite broad again in Sentence (7), which mentions “work-related variables” instead of a specific variable and “researching” instead of a specific kind of research.

Abstract Templates

Copy and paste any of the paragraphs below into a word processor. Then insert the appropriate information to produce an abstract for your research paper.

Template #1

Researchers have established that [Make a broad statement about your area of research.] . However, [Describe the knowledge gap that your paper addresses.] . The goal of this paper is to [Describe the purpose of your paper.] . The achieve this goal, we [Briefly explain your methodology.] . We found that [Indicate the main finding(s) of your study; you may need two sentences to do this.] . [Provide a broad implication of your results.] .

Template #2

It is well-understood that [Make a broad statement about your area of research.] . Despite this, [Describe the knowledge gap that your paper addresses.] . The current research aims to [Describe the purpose of your paper.] . To accomplish this, we [Briefly explain your methodology.] . It was discovered that [Indicate the main finding(s) of your study; you may need two sentences to do this.] . [Provide a broad implication of your results.] .

Template #3

Extensive research indicates that [Make a broad statement about your area of research.] . Nevertheless, [Describe the knowledge gap that your paper addresses.] . The present work is intended to [Describe the purpose of your paper.] . To this end, we [Briefly explain your methodology.] . The results revealed that [Indicate the main finding(s) of your study; you may need two sentences to do this.] . [Provide a broad implication of your results.] .

• How to Write an Abstract

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An abstract summarizes, usually in one paragraph of 300 words or less, the major aspects of the entire paper in a prescribed sequence that includes: 1) the overall purpose of the study and the research problem(s) you investigated; 2) the basic design of the study; 3) major findings or trends found as a result of your analysis; and, 4) a brief summary of your interpretations and conclusions.

Writing an Abstract. The Writing Center. Clarion University, 2009; Writing an Abstract for Your Research Paper. The Writing Center, University of Wisconsin, Madison; Koltay, Tibor. Abstracts and Abstracting: A Genre and Set of Skills for the Twenty-first Century . Oxford, UK: Chandos Publishing, 2010;

Importance of a Good Abstract

Sometimes your professor will ask you to include an abstract, or general summary of your work, with your research paper. The abstract allows you to elaborate upon each major aspect of the paper and helps readers decide whether they want to read the rest of the paper. Therefore, enough key information [e.g., summary results, observations, trends, etc.] must be included to make the abstract useful to someone who may want to examine your work.

How do you know when you have enough information in your abstract? A simple rule-of-thumb is to imagine that you are another researcher doing a similar study. Then ask yourself: if your abstract was the only part of the paper you could access, would you be happy with the amount of information presented there? Does it tell the whole story about your study? If the answer is "no" then the abstract likely needs to be revised.

Farkas, David K. “A Scheme for Understanding and Writing Summaries.” Technical Communication 67 (August 2020): 45-60;  How to Write a Research Abstract. Office of Undergraduate Research. University of Kentucky; Staiger, David L. “What Today’s Students Need to Know about Writing Abstracts.” International Journal of Business Communication January 3 (1966): 29-33; Swales, John M. and Christine B. Feak. Abstracts and the Writing of Abstracts . Ann Arbor, MI: University of Michigan Press, 2009.

Structure and Writing Style

I.  Types of Abstracts

To begin, you need to determine which type of abstract you should include with your paper. There are four general types.

Critical Abstract A critical abstract provides, in addition to describing main findings and information, a judgment or comment about the study’s validity, reliability, or completeness. The researcher evaluates the paper and often compares it with other works on the same subject. Critical abstracts are generally 400-500 words in length due to the additional interpretive commentary. These types of abstracts are used infrequently.

Descriptive Abstract A descriptive abstract indicates the type of information found in the work. It makes no judgments about the work, nor does it provide results or conclusions of the research. It does incorporate key words found in the text and may include the purpose, methods, and scope of the research. Essentially, the descriptive abstract only describes the work being summarized. Some researchers consider it an outline of the work, rather than a summary. Descriptive abstracts are usually very short, 100 words or less. Informative Abstract The majority of abstracts are informative. While they still do not critique or evaluate a work, they do more than describe it. A good informative abstract acts as a surrogate for the work itself. That is, the researcher presents and explains all the main arguments and the important results and evidence in the paper. An informative abstract includes the information that can be found in a descriptive abstract [purpose, methods, scope] but it also includes the results and conclusions of the research and the recommendations of the author. The length varies according to discipline, but an informative abstract is usually no more than 300 words in length.

Highlight Abstract A highlight abstract is specifically written to attract the reader’s attention to the study. No pretense is made of there being either a balanced or complete picture of the paper and, in fact, incomplete and leading remarks may be used to spark the reader’s interest. In that a highlight abstract cannot stand independent of its associated article, it is not a true abstract and, therefore, rarely used in academic writing.

II.  Writing Style

Use the active voice when possible , but note that much of your abstract may require passive sentence constructions. Regardless, write your abstract using concise, but complete, sentences. Get to the point quickly and always use the past tense because you are reporting on a study that has been completed.

Abstracts should be formatted as a single paragraph in a block format and with no paragraph indentations. In most cases, the abstract page immediately follows the title page. Do not number the page. Rules set forth in writing manual vary but, in general, you should center the word "Abstract" at the top of the page with double spacing between the heading and the abstract. The final sentences of an abstract concisely summarize your study’s conclusions, implications, or applications to practice and, if appropriate, can be followed by a statement about the need for additional research revealed from the findings.

Composing Your Abstract

Although it is the first section of your paper, the abstract should be written last since it will summarize the contents of your entire paper. A good strategy to begin composing your abstract is to take whole sentences or key phrases from each section of the paper and put them in a sequence that summarizes the contents. Then revise or add connecting phrases or words to make the narrative flow clearly and smoothly. Note that statistical findings should be reported parenthetically [i.e., written in parentheses].

Before handing in your final paper, check to make sure that the information in the abstract completely agrees with what you have written in the paper. Think of the abstract as a sequential set of complete sentences describing the most crucial information using the fewest necessary words. The abstract SHOULD NOT contain:

• A catchy introductory phrase, provocative quote, or other device to grab the reader's attention,
• Lengthy background or contextual information,
• Redundant phrases, unnecessary adverbs and adjectives, and repetitive information;
• Acronyms or abbreviations,
• References to other literature [say something like, "current research shows that..." or "studies have indicated..."],
• Using ellipticals [i.e., ending with "..."] or incomplete sentences,
• Jargon or terms that may be confusing to the reader,
• Citations to other works, and
• Any sort of image, illustration, figure, or table, or references to them.

Abstract. Writing Center. University of Kansas; Abstract. The Structure, Format, Content, and Style of a Journal-Style Scientific Paper. Department of Biology. Bates College; Abstracts. The Writing Center. University of North Carolina; Borko, Harold and Seymour Chatman. "Criteria for Acceptable Abstracts: A Survey of Abstracters' Instructions." American Documentation 14 (April 1963): 149-160; Abstracts. The Writer’s Handbook. Writing Center. University of Wisconsin, Madison; Hartley, James and Lucy Betts. "Common Weaknesses in Traditional Abstracts in the Social Sciences." Journal of the American Society for Information Science and Technology 60 (October 2009): 2010-2018; Koltay, Tibor. Abstracts and Abstracting: A Genre and Set of Skills for the Twenty-first Century. Oxford, UK: Chandos Publishing, 2010; Procter, Margaret. The Abstract. University College Writing Centre. University of Toronto; Riordan, Laura. “Mastering the Art of Abstracts.” The Journal of the American Osteopathic Association 115 (January 2015 ): 41-47; Writing Report Abstracts. The Writing Lab and The OWL. Purdue University; Writing Abstracts. Writing Tutorial Services, Center for Innovative Teaching and Learning. Indiana University; Koltay, Tibor. Abstracts and Abstracting: A Genre and Set of Skills for the Twenty-First Century . Oxford, UK: 2010; Writing an Abstract for Your Research Paper. The Writing Center, University of Wisconsin, Madison.

Writing Tip

Never Cite Just the Abstract!

Citing to just a journal article's abstract does not confirm for the reader that you have conducted a thorough or reliable review of the literature. If the full-text is not available, go to the USC Libraries main page and enter the title of the article [NOT the title of the journal]. If the Libraries have a subscription to the journal, the article should appear with a link to the full-text or to the journal publisher page where you can get the article. If the article does not appear, try searching Google Scholar using the link on the USC Libraries main page. If you still can't find the article after doing this, contact a librarian or you can request it from our free i nterlibrary loan and document delivery service .

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Writing an abstract - a six point checklist (with samples)

Posted in: abstract , dissertations

The abstract is a vital part of any research paper. It is the shop front for your work, and the first stop for your reader. It should provide a clear and succinct summary of your study, and encourage your readers to read more. An effective abstract, therefore should answer the following questions:

• Why did you do this study or project?
• What did you do and how?
• What did you find?
• What do your findings mean?

So here's our run down of the key elements of a well-written abstract.

• Size - A succinct and well written abstract should be between approximately 100- 250 words.
• Background - An effective abstract usually includes some scene-setting information which might include what is already known about the subject, related to the paper in question (a few short sentences).
• Purpose  - The abstract should also set out the purpose of your research, in other words, what is not known about the subject and hence what the study intended to examine (or what the paper seeks to present).
• Methods - The methods section should contain enough information to enable the reader to understand what was done, and how. It should include brief details of the research design, sample size, duration of study, and so on.
• Results - The results section is the most important part of the abstract. This is because readers who skim an abstract do so to learn about the findings of the study. The results section should therefore contain as much detail about the findings as the journal word count permits.
• Conclusion - This section should contain the most important take-home message of the study, expressed in a few precisely worded sentences. Usually, the finding highlighted here relates to the primary outcomes of the study. However, other important or unexpected findings should also be mentioned. It is also customary, but not essential, to express an opinion about the theoretical or practical implications of the findings, or the importance of their findings for the field. Thus, the conclusions may contain three elements:
• The primary take-home message.
• Any additional findings of importance.
• Implications for future studies.

Example Abstract 2: Engineering Development and validation of a three-dimensional finite element model of the pelvic bone.

Abstract from: Dalstra, M., Huiskes, R. and Van Erning, L., 1995. Development and validation of a three-dimensional finite element model of the pelvic bone. Journal of biomechanical engineering, 117(3), pp.272-278.

And finally...  A word on abstract types and styles

Abstract types can differ according to subject discipline. You need to determine therefore which type of abstract you should include with your paper. Here are two of the most common types with examples.

Informative Abstract

The majority of abstracts are informative. While they still do not critique or evaluate a work, they do more than describe it. A good informative abstract acts as a surrogate for the work itself. That is, the researcher presents and explains all the main arguments and the important results and evidence in the paper. An informative abstract includes the information that can be found in a descriptive abstract [purpose, methods, scope] but it also includes the results and conclusions of the research and the recommendations of the author. The length varies according to discipline, but an informative abstract is usually no more than 300 words in length.

Descriptive Abstract A descriptive abstract indicates the type of information found in the work. It makes no judgements about the work, nor does it provide results or conclusions of the research. It does incorporate key words found in the text and may include the purpose, methods, and scope of the research. Essentially, the descriptive abstract only describes the work being summarised. Some researchers consider it an outline of the work, rather than a summary. Descriptive abstracts are usually very short, 100 words or less.

Adapted from Andrade C. How to write a good abstract for a scientific paper or conference presentation. Indian J Psychiatry. 2011 Apr;53(2):172-5. doi: 10.4103/0019-5545.82558. PMID: 21772657; PMCID: PMC3136027 .

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How to Write an Abstract for a Research Paper: Writing Guide & Examples

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An  abstract is a brief summary of a research paper that is usually between 150 and 250 words in length. The purpose of the abstract is to provide a concise overview of the research paper's main questions, scope, methodology, findings, and conclusions. The abstract is usually located at the beginning of the paper, after the title page and before the main body of the text. It serves as a preview, and can be useful for readers who want to quickly determine whether the paper is relevant to their interests.

This guide describes all the key parts of this crucial segment and demonstrates how to write an abstract for a research paper . Research abstract examples and tips are also offered to help you create this section effectively.

What Is an Abstract in a Research Paper?

First, let’s cover what is an abstract in research. A research paper abstract is a synopsis of your full study. Specifically, writing an abstract involves extracting the main aspects of your work in a given order. These components include your study purpose and study questions, design, main findings, interpretation, and conclusion. Based on this summary, readers will decide whether to look at the rest of your project. Hence, you must include sufficient key information as this makes the abstract of a research paper useful to your audience or professor. To determine if you have included adequate data, imagine yourself as a researcher conducting an investigation. Consider an abstract as the only section, and think about how much information you provided. Are you satisfied with it? Does it describe your study adequately? Revise your writing accordingly. But don’t be confused. An abstract is a self-contained text, not a part of a research paper introduction . Remember that scientific paper abstracts must highlight your manuscript’s selling point and lure a reader to go through it.  At first, it may sound difficult. But this guide will reveal every essential writing step. Alternatively, you can also contact StudyCrumb and pay to write research paper to avoid any further individual work.

What Is the Purpose of an Abstract?

The aforementioned definition demonstrates why abstract writing is important. Nevertheless, it is also necessary to understand the purpose of an abstract in a research paper. Well-written abstracts serve multiple objectives. For example, they communicate your key findings and allow readers to make an informed decision about how relevant your article is based on their interests and whether they should consider it. Reading an abstract of a scientific paper also prepares reviewers to grasp the key points and follow your detailed points and analyses. Another purpose of an abstract is for classification. Online libraries or journal databases, and search engines use abstracts for indexing published works. This allows users to retrieve what they are looking for quickly rather than reading full texts. Thus, a good abstract must include several key terms that potential readers would use for searching, as this makes discovering your work easy.

How Long Is an Abstract?

An abstract is perhaps the only section of your manuscript that is limited regarding how many words you can use. In general, it is usually limited to 150 and 300 words. However, for research paper abstract, most guidelines stick to the range of 200 and 250 words both for simple or small manuscripts and specific types of papers such as theses or dissertations. This restriction should not be exceeded no matter what. However, how long your abstract can be is influenced by the assignment instructions. Thus, it is essential to comply with any guidelines about the abstract length.

What Makes a Good Abstract for a Research Paper?

While the length aspect is vital, it is also essential to write a good abstract. This entails providing an honest and complete synopsis of your work through a coherent flow of ideas. An abstract in a paper should also be self-contained without the need for readers to peruse other parts for further information. Therefore, knowing how to write an effective abstract for a research paper can make a difference. Here are elements that make a good abstract for a research paper:

• Use one finely written, concise, and coherent paragraph that stands individually as an information unit.
• Add all the basic academic features of your manuscript, including background, objective, focus, method, findings/results, and conclusion.
• Do not write about information not covered in your document.
• Ensure the section is understandable to a wide audience and your subject-specific readers.
• Focus on issues instead of people.
• Develop it with the language of your main paper in a simple format for general readers.
• Put it just after your title page.

When to Write an Abstract?

Lengthy texts such as scholarly manuscripts usually require students to write an abstract section. You might also need to write an abstract for a scientific paper when:

• Submitting reports to journals for publication or peer review.
• Working on a book chapter proposal.
• Applying for research grants.
• Completing conference paper proposals.
• Composing book proposals.
• Writing theses or dissertations.

For undergraduates, you may be required to include an abstract in a research paper for others who have not read your main manuscript. Regardless of the type of work you are dealing with, it is necessary to draft your abstract after completing writing, as this enhances accuracy and conformity with other segments of a report.

What to Include in an Abstract of a Research Paper?

Another crucial aspect that you must consider is the structure of an abstract. Good abstracts are well-organized, which makes them more informative. Scientific guidelines emphasize the IMRad format as a standard way of unifying this section. The parts of an abstract in a research paper based on this system consist of: 

Introduction

• Discussion.

Do not forget to balance all your sections properly regarding methods included under each heading. Using this setup allows you to write a helpful, concise, and easy-to-understand abstract of a paper. Nonetheless, some  instructions may necessitate additional subheadings, particularly works such as clinical trials, observational studies, case studies, and meta-analyses. Hence, you should be attentive to your task requirements.

Sounds like you'll need lots of time to do it all properly? Use the best college paper writing service to avoid any trouble.

As the first section, an introduction reveals to readers what your work is about. Consequently, you should know how to start an abstract by writing a good beginning segment. Here, describe the scope, question/hypothesis, main objectives, and rationale for your study. In most cases, you can frame this part in 2-3 sentences. Each of them should describe a specific point to maximize word use. The introduction to an abstract part of a paper offers a background to your investigation, which should smoothly lead to an explanation of the methods that were used. Be careful here because writing an abstract for a research paper containing a lengthy introduction takes up space for other important sections. This affects the quality of an abstract in a scientific paper. Therefore, ensure that you provide brief, specific, and relevant information that keeps readers interested. Look at this example of an abstract introduction:

The present study explored the effect of technology in enhancing employment opportunities today. The benefits of technology have been examined in exploratory and descriptive studies. Nevertheless, no study has considered how technology increases employment opportunities.

Here are some more examples of how to begin your abstract. 

Methodology in research is usually the second longest part of your abstract paragraph. The focus here is on providing adequate information about what you did and how. Specifically, give essential facts about your study design, setting, sample, data collection and analysis instruments, measures, and parameters. The methodology part is vital as you write the abstract section of a research paper because it helps in verifying your manuscript’s credibility. An editor will ignore an abstract missing a methods section or that does not have a clear explanation. Therefore, practice caution and professionalism when writing this unit by including enough details and conveying the maximum quantity of information with few words. If you are unsure of how to organize this segment, consider this example of a good abstract methodology:

This study used a qualitative exploratory design in which data was collected from existing studies and documents. A sample of 120 peer-reviewed works and documents were analyzed using an interpretive paradigm.

This section is about what you found after conducting your research. It is an indispensable and longest part of a research abstract because anyone reading intends to gain insights into your study findings or which data your investigation uncovered. Therefore, avoid compromising its quality by ensuring that you include as much factual information about your results as the word count allows. Drafting the results of an abstract for research papers is not easy. However, the details you should express here include the number of participants, outcomes of your analysis, and actual data such as numbers or mean, etc. Remember to be descriptive and prioritize fresh and substantiated findings contradicting previous studies. Also, indicate any limitations regarding your results’ reliability and accuracy. Look at this sample abstract results:

Nine studies did not meet the research criteria and were excluded. An analysis of the remaining 91 studies revealed five major themes, including ease of skills acquisition, work-at-home opportunities, globalization, digital marketing, and increased networking.

This is a part of the abstract structure where you divulge what readers can take home from your work or what your results mean based on how you interpreted the issue. Use a few but precise sentences to highlight the findings relating to what your study was about. You should also mention any unexpected or important outcomes. Additionally, you can offer a personal judgment regarding the practical or theoretical implications of your results or how significant they are for the study field as a whole. While conclusions are very short parts of an abstract, they are the most impactful on average audiences since readers usually believe authors and consider their views reliable. For this reason, ensure that you are honest when writing an abstract in research by limiting your claims to what your data exposes. Here is an example of a scientific abstract conclusion:

Technology has a positive effect on employment as it creates more job opportunities through remote work. It also enables people from any part of the world to learn essential skills, which enhances their job prospects.

Check our guide on creating a concluding section if you want to know more information on how to write a conclusion for a research paper .

An abstract for research paper must also contain a range of keywords. These are important words or phrases that act as search terms for finding your work quickly. Therefore, in addition to knowing how to write an abstract for a research paper and what to write in an abstract, you should understand how to include useful keywords that capture essential aspects of your manuscript. Think about how you can find your work online. Which words or a combination of them will be typed in a search box? You should use those terms. Acronyms such as OCD, meaning obsessive-compulsive disorder, may also be included. While you are not limited regarding the number of keywords to be used, it is recommended to include 3-5 keywords. Keep in mind that the research abstract format for keywords is a separate line beginning with an indention, like a paragraph below your abstract. Indicate it by italicizing the word Keywords followed by a colon and space look like this:

Keywords: international marketing, globalization, medium-size businesses, B2B, adaptation.

Do not italicize your terms.

How to Write a Research Paper Abstract Step-By-Step

Shrinking a manuscript that you have prepared for several days, weeks, or months into a 300-word paragraph can be challenging when preparing the abstract. However, you can follow specific tricks on how to write an abstract for a paper to address the difficulty. Before you begin, you must consider the instructions provided carefully concerning aspects such as spacing, fonts, word limit, and subheadings. In this section, you will learn how to write a good abstract for a research paper step by step.

1. Explain Your Research Purpose

Students usually start an abstract for a research paper by identifying the study's purpose. Here is where you consider the reasons for conducting your research. For example, if your study problem is about technology and employment, so what? Why should readers care about your topic? In this part of the abstract, you can describe what was solved or why you feel your topic is relevant. Use this section to inform readers about your key argument, as it helps in generating a good abstract for a research paper. Remember to be descriptive by explaining the difficulties of your topic or gaps in knowledge you will address and how your investigation will affect the issue. Consider triggers such as why you conducted your research, how you performed it, what you found, the significance of your study and its results, and why others should read your paper.

2. Define a Research Problem

The next step towards writing a good abstract involves explaining the central issue or problem statement behind your investigation or that your paper addresses. Remember, you first identified your purpose, so build on that by focusing on one key problem. Abstracts for scientific papers usually include this section to demonstrate the scope of a manuscript. Avoid using too much jargon here by making it easy for your readers to see your main message. If your abstract does not include the primary question, then you do not understand why you are conducting your study. Remember that when writing a research abstract, your purpose and problem form the backbone of the work. Thus, do not leave this step until you have one concise study problem.

3. Introduce Your Research Approach

After identifying your research problem, you now need to explain how you addressed it in this part of an academic abstract. In other words, how did you conduct your study following your key problem? When writing an abstract for a paper, let your audience know what you did exactly to get to the findings. Abstract in research paper may include approaches such as experimentation, case study, document analysis, or simulation. You must also highlight the extent of a manuscript, such as how many documents were analyzed and which variables were used. While this section of an abstract for a paper may require a long sentence, ensure that anyone can read it without needing to pause in the middle.

4. Discuss Results

After clarifying your approach, your study abstract must disclose what was found. What is the solution to your research problem? Did you confirm your hypothesis? Remember to be direct, detailed, and clear. Specifically, writing a scientific abstract requires that you describe your results in exact numbers or percentages. This allows you to create an abstract of research paper that cannot be misinterpreted easily. Also, avoid vague words such as “significant”, “large”, “very”, or “small.” In this section, an abstract in a research paper should not include exaggerations or create expectations that your manuscript cannot fulfill. Rather, the focus should be on your most important findings to engage readers. However, do not attempt to fit all your results in this part.

5. Wrap Up Your Scientific Paper Abstract

You should also conclude an abstract after completing the aforementioned steps. This enables you to finish up a research paper abstract and end it. Here, describe what your results mean and why your overall work is important. Mention what the answer to your research problem implies and identify if it is specific or general. For example, are your results generalizable to a wider population or selected groups? When creating an abstract, describe why your readers should care about your results rather than re-stating the findings. What can people do with your study? As stated previously, an abstract is a brief summary in the beginning of a research paper or any other scientific work. Read our guide on how to write an abstract for a research paper and how to structure it for more explanation.

Research Paper Abstract Examples

As you can see, constructing an abstract is not difficult if you follow the above-mentioned steps. You can now compose your own one easily. Nonetheless, if you are still confused or unsure whether you are on the right path, feel free to look at different examples of an abstract for a research paper. You can also consider these three examples of abstracts in research papers and use one of them as a draft for your work. Need a research proposal example ? You will find it in one more blog on our platform. Research paper abstract example 1

Abstract page example 2

Example of an abstract for a research paper 3

Research Paper Abstract Format

Another important consideration is complying with the specified abstract writing format to avoid any confusion on how this section should be completed. Your layout depends on the citation style being used. Specifically, the main styles, such as APA, MLA, and Chicago, have individual rules regarding how to format an abstract in a research paper. However, to make it simple, an abstract template is usually provided to help you with the organization. In general, observe and stick to your paper’s requirements.

Extra Tips for Writing an Abstract

Writing an abstract for a research paper should not be a complex process. You already have a good idea about how to make an abstract after reading the previous sections. Remember that writing this segment is an essential part of your work because it prefaces the entire manuscript. Still, it is usually the last segment of your project to be written, which means that you should summarize your research easily. However, this can be a daunting undertaking for some students. Below are additional abstract writing tips and guidelines to help you.

Draw Inspiration From Research Paper Abstracts Examples

Even if you follow this article’s guidelines, without writing practice, it can be difficult to create good abstracts. Therefore, if you are still struggling to write, you can draw inspiration from sample abstracts. These can be found in peer-reviewed articles or course books in your school library or from online databases. Focus on samples from your study field e.g., science abstracts examples if you are into the sciences or those for social sciences if it is your field. Seek assistance from your professor to ensure that you consider a good abstract paper example. Another option is reading how to write an abstract example segment, as this offers you a quick refresher on composing abstracts.

Prepare an Abstract Outline

It is also essential to write a research abstract outline if you have not done so already. Creating an outline will help you write your actual abstract paper efficiently. Make sure to place your key argument at the top before reading each subheading of your manuscript as a starting point. Write one-sentence summaries of your main sections as you read in the order that they appear in your work. Also, do not forget to summarize your conclusion. What goes in an abstract, however, is limited. For example, the literature review cannot be included. Rather, you can state in a sentence how your work fits into the wider academic discourse.

Write Abstract From the Ground Up

While your abstract is a synopsis, you should write it from scratch and as a completely different part of your manuscript. Copying and pasting quotes or paraphrasing sentences should be avoided. Use new phrases and vocabulary instead when writing this section to keep it engaging and free of redundant words or sentences. Read how to write abstract for research paper for more clarification about what you should include.

Make Your Research Abstract Concise

Ensure that your research paper abstract is clear, concise, and coherent. It should be no more than 200-250 words. If it is longer, cut it down where necessary. Since readers just want to get the overall view of your claim, you can exclude unimportant information and construct brief sentences. This is how to write a paper abstract:

• Include essential information found in the paper only
• No exaggerations or inclusion of new ideas
• No use of abbreviations that are found only in the body because the abstract should be self-contained
• No dwelling on previous studies since this is a synopsis of your report.

Mistakes to Avoid When You Write an Abstract for a Research Paper

Even if you know how to write research abstract, check it several times to ensure that what you included agrees with your manuscript content completely. Avoid these common mistakes:

• Research paper abstracts should not include catchy phrases or quotes focused on grabbing your readers’ attention.
• Do not use direct acronyms because they require further explanation to help readers understand.
• Citing other studies is not needed.
• Do not use confusing/unnecessary terms or obscure jargon, as the general audience may not understand them.
• A scientific paper abstract should not be too specific. Rather, consider a wider overview of your paper.
• Do not include long quotations, figures, or tables. They take up precious space, and your audience does not need them.

Bottom Line on How to Write a Research Abstract

This guide discussed extensively how to write the abstract of a research paper. Reaching this section means that you now understand what is an abstract in writing. The article also provided several abstract writing examples to help you grasp the described ideas. It is your turn now to develop a nice abstract by applying what you have learned. Do not fret if you are still confused or cannot recall some points. You can just re-read a section to fully understand all concepts.

Our professional writers can compose a top-notch abstract or any other section of a research paper. You can also easily ask for comprehensive assistance with any task and get excellent work strictly according to your deadlines.

FAQ About How to Write an Abstract

1. what is an abstract.

An abstract is a takeaway from your research. Specifically, abstracts are standalone sections that describe an issue, techniques utilized in exploring the issue, and the outcome of these procedures. While each study field specifies what to include in this section, it should be a concise synopsis of your work.

2. Where does an abstract go in a research paper?

Place your research paper abstract at the beginning of your work immediately after a title page and before your table of contents. However, some manuscripts have an acknowledgments section. Here, your abstract appears after that part. It should also be on its page and in a single paragraph.

3. Do you write an abstract first or last?

Even though it appears at the top of your work, ensure that you write an abstract last after completing your research paper since it involves abstracting contents from your manuscript. This allows you to align this section with other parts, such as the title, introduction, and background.

4. Do I need to cite references in a research paper abstract?

It is usually inappropriate to include any reference within abstracts because this section should demonstrate original research. The abstract of a research paper must include a description of what you did in your paper, what you argued, and what you found. You will cite specific sources in your manuscript’s body.

5. What should not be included in an abstract?

These are what you shouldn’t include in the abstract of a research paper:

• Long sentences
• Excessive details or lengthy contextual information
• Filler words, redundant phrases, and repetitive information
• Incomplete sentences
• New information not found within your main text.

6. What tense should I use when writing an abstract?

Write an abstract using active voice. However, a substantial part of this segment may need passive sentences. Nonetheless, use concise and complete sentences when writing your abstract. Specifically, get to your point quickly and focus mostly on the past tense since you are reporting completed research.

Joe Eckel is an expert on Dissertations writing. He makes sure that each student gets precious insights on composing A-grade academic writing.

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Recent progresses in analytical method development for 210 Pb in environmental and biological samples

• Review Article
• Open access
• Published: 22 April 2024

Cite this article

You have full access to this open access article

• Hong Ren 1   na1 ,
• Xinyu Gong 1 , 2   na1 ,
• Lei Zhou 1 ,
• Peng Wang 1 &
• Yiyao Cao 1  

As a decay product of uranium series, 210 Pb spreads widely in the nature and imposes strong radiological and chemical toxicity. It is vital to establish reliable and efficient radioanalytical methods for 210 Pb determination to support environment and food radioactivity monitoring programs. This article critically reviews analytical methods developed for determining 210 Pb in environmental and biological samples, especially new development in recent years. Techniques applied throughout different analytical steps including sample pretreatment, separation, purification, and detection are summarized and their pros and cons are discussed to provide a holistic overview for 210 Pb environmental and biological assay.

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Introduction

210 Pb is a radionuclide with 82 protons, 128 neutrons, and a half-life of 22.3 a. It is an important daughter of 222 Rn in the 238 U decay series as shown in Fig.  1 (Biggin et al. 2002 ). 210 Pb decays into short-lived 210 Bi ( t ½ = 5 days) by beta decay, and then decays into 210 Po ( t ½ = 138.5 days) by beta emission. 210 Pb is considered a highly toxic radionuclide (El Afifi and Borai 2006 ). It releases low-energy beta particles with energies of 61 keV (19%) and 20 keV (81%) (Blanco et al. 2004 ; Schayer et al. 2010 ; Yamamoto et al. 2009 ), and gamma rays with energies of 46.5 keV.

The decay chain of  238 U (Biggin et al. 2002 )

There are three main sources of 210 Pb in the environment (Carvalho 1995 ; Moore et al. 1976 ): (1) the decay of natural uranium system; (2) the production of nuclear fuel, including mining and smelting of uranium mines; (3) other industrial activities, such as phosphorus mining, phosphate fertilizer production, and coal mining and processing. 222 Rn and its daughters are important intermediate products in the decay chain of 238 U, and they are also the main source of 210 Pb in the atmosphere. During the utilization of minerals, 210 Pb produced by the decay of 222 Rn in minerals will be released into the atmosphere. Due to its particle reactive properties, 210 Pb will be absorbed to sub-micron aerosols and stay in the air for several weeks. The scavenge of 210 Pb from the atmosphere is mainly through atmospheric convection, sedimentation, rain, and snow, and thereafter, it enters the soil, water system, or deposits on the surface of plants (Kanai 2013 ; Melieres et al. 2003 ).

From a radiological point of view, ingestion of radionuclides has a long-term health effect on the human body (UNSCEAR 1993 ). 210 Pb in the environment can enter the human body through inhalation, ingestion, or contact through the skin or wound, causing internal radiation exposure hazards (Sha 2004 ). 210 Pb that is inhaled into the respiratory tract through the mouth or nose may deposit in various areas of the respiratory system. When ingested, 210 Pb will enter the gastrointestinal tract through the throat. About 20% of the ingested 210 Pb can be absorbed and enter into systemic metabolism, which tends to accumulate at a relatively higher extent in specific organs such as the kidney, liver, and bone. 210 Pb is eliminated from the body through various pathways over time, including feces, sweat, urine, and other channels (e.g., hair, dander), while a small amount of 210 Pb accumulates in bones with a long biological half-life (Castellino and Aloj 1964 ; Leggett 1993 ).

210 Pb is a bone-seeking radionuclide, and its affinity to bone tissues makes it useful for forensic scientists to estimate post-mortem interval (PMI), which refers to the time that has elapsed since a person or animal has died (Schrag et al. 2012 ). In addition, 210 Pb has been widely used as a tracer in sediment dating (Yang et al. 2010 ), assessment of tobacco and radon exposure (Li et al. 2008 ; Schayer et al. 2010 ), soil erosion/disturbance (Matisoff 2014 ; Porto et al. 2016 ), and atmospheric, land, and river transport activities (Baskaran 2011 ; Diaz-Asencio et al. 2017 ; Teramage et al. 2015 ).

In short, determination of 210 Pb in environmental and biological samples is of great significance to protect the environment and human health. However, to the best of our knowledge, there is no systematic review on the methodology development for 210 Pb environmental and biological assays, as most of the existing reviews are about its application for environmental tracing, dating, and metabolism (Cohen and Howells 1969 ; Matisoff 2014 ; Zhang and Xu 2023 ). This article provides a holistic review of the research progress made for 210 Pb determination in environmental and biological samples, especially new developments in recent years. The review focuses on analytical techniques applied in different steps, including sample pretreatment, separation and purification, source preparation, and measurement as illustrated in Fig.  2 .

General analytical scheme for determination of 210 Pb in environmental and biological samples

In general, the existing methods for the determination of 210 Pb are classified into direct and indirect measurement methods. The direct method includes counting the low-energy gamma rays ( E γ  = 46.5 keV) of 210 Pb by gamma ( γ ) spectrometry (Barba-Lobo et al. 2021 ), or measuring the beta activity of 210 Pb by liquid scintillation counting (LSC) (Stojkovic et al. 2020 ), or counting 210 Pb atoms by inductively coupled plasma mass spectrometry (ICP-MS) (Lariviere et al. 2005 ). The indirect method can be performed through the measurement of its daughter product 210 Bi with, e.g., gas flow beta ( β ) counter (Franklin et al. 2016 ) or granddaughter 210 Po using alpha ( α ) spectrometry (Akozcan 2013 ). Table 1 complies the progress made in the literature in the past decade regarding analytical methods and their performance for 210 Pb environmental and biological assays. The subsequent discussion delves into these advancements in detail.

Sample pretreatment

Because of the low-level concentrations of 210 Pb in the environment, in most cases, it is difficult to measure it straightforward without sample preparation and obtain accurate results. In order to improve the detection efficiency, the samples need to be homogenized and pre-concentrated to remove the bulk matrix, followed by separation from interferences and purification of the analyte 210 Pb. Therefore, sample pre-treatment is a key initial step in the 210 Pb radiochemical analysis process. The specific pre-treatment procedure varies depending on the sample type, with the primary objective to achieve a homogenous sample (mostly in aqueous phase) containing enriched 210 Pb and eliminated matrix content.

Pretreatment of solid samples

For environmental solid samples (Bao et al. 2015 ; Bonotto and Vergotti 2015 ; Krmar et al. 2014 ), including soil, sediment, rock, and aerosol, the pretreatment methods used are typically drying and ashing, followed by acid digestion with or without microwave assistance. Lead readily dissolves in warm diluted HNO 3 , while it slowly evolves hydrogen when treated with hot concentrated HCl. Therefore, for effectively leaching 210 Pb from most soil or sediment samples, a mixture of acids including HNO 3 , HF, HClO 4 , and HCl is widely adopted in various studies (Blanco Rodriguez et al. 2014 ; Jia and Torri 2007 ; Sussa et al. 2013 ). The use of microwave in acid digestion accelerates the speed and completeness for the dissolution of target analyte, allowing for higher sample throughput. For example, Kılıç et al. ( 2014 ) utilized a microwave digestion system to pretreat 0.25 g of samples with a mixture of 7 mL of 37% HCl and 3 mL of 65% HNO 3 when analyzing 210 Pb in sediments from Golden Horn Bay. The digestion was completed within 35 min.

Because 210 Pb is highly particle reactive, 210 Pb can be enriched in aerosols from the atmosphere (Baskaran et al. 1993 ). To minimize 210 Pb loss during the analysis of aerosol samples, which are typically collected with silica or glass fiber filters, a fractional ashing method can be employed as a pre-treatment technique in addition to the digestion with concentrated HNO 3 and HClO 4 (Persson and Holm 2014 ). This method effectively prevents the evaporation of lead at temperatures above 500 ℃ as shown in Table  2 (Mao et al. 2018 ). By adding an appropriate amount of HNO 3 and HClO 4 and repeating the operation until complete ashing, this technique ensures thorough sample processing. Additionally, the use of boric acid can help in reducing the ashing time. The advantages of this method are evident in its simplicity, minimal acid consumption, and relatively low laboratory background. However, it may not be suitable for handling a large number of samples (Dai et al. 2015 ).

The above-mentioned drying, ashing, and acid digestion approach also applies to pretreat biological samples including bone, lichen, mosses, and food. Differently, specific efforts should be given to the decomposition of organic matters largely contained in biological samples. For this purposes, prolonged ashing, addition of oxidizing reagents such as H 2 O 2 , or the use of microwave digestion became necessary. For example, Wallova et al. ( 2012 ) monitored the radioactivity levels of deer bones in Austria, with ashing the bones at 450 °C for 17–22 h in a muffle furnace after slicing. Sert et al. ( 2011 ) dissolved lichen and moss samples, which readily absorb 210 Pb from the atmosphere (Skuterud et al. 2005 ), with concentrated HNO 3 and H 2 O 2 , and then treated by concentrated HCl. Kılıç et al. ( 2014 ) digested 0.6 g dried mussel sample with 10 mL of concentrated HNO 3 in a microwave oven at a pressure of 30 bar. To prevent loss of samples and volatile analytes, the sample was placed in cold water immediately after microwave digestion (Henricsson et al. 2011 ).

Acid digestion method is simple to operate and can effectively decompose organic matter in the sample. However, acid digestion consumes a large amount of acids, and the experiment duration can be quite lengthy, which can be costly and environmental harmful (Huang and Zhu 1981 ). Microwave digestion technology has many advantages including simple experimental procedure, minimized acid consumption, fast and complete decomposition, and accurate temperature control, which is known as “green chemical reaction technology” (Zhou et al. 2004 ). However, this technique is not suitable for processing large quantities of samples and complex matrices.

For samples containing refractory fractions, Jia and Torri ( 2007 ) applied an alkaline fusion method with fluxes of Na 2 CO 3 and Na 2 O 2 . Compared with the acid digestion with HNO 3 , HF, HClO 4 , and HCl, the alkaline fusion method delivered comparable results for 210 Pb. In their study, they applied the alkaline fusion method to various types of solid samples, achieving average chemical yields of 90.0 ± 9.8% for 210 Po and 88.4 ± 7.1% for 210 Pb. These results demonstrate the wide applicability and reliability of the alkaline fusion method for solid sample pre-treatment. Compared to acid digestion, alkaline fusion features for much faster accomplishment as it usually operates at higher temperatures (typically 500–1000 °C in alkaline fusion vs. 100–200 °C in acid digestion).

Pretreatment of liquid samples

Environmental water samples including surface water, seawater, and drinking water are usually pre-concentrated by chemical treatment such as co-precipitation. After collection, the water sample is typically filtered with a filter membrane (0.4–0.45 μm) to remove particles and then acidified to pH 1–2 to avoid the growth of microorganisms. Fe(OH) 3 or MnO 2 co-precipitation is often used to pre-concentrate 210 Pb prior to the subsequent separation and measurement (Kpeglo et al. 2015 ; Seiler et al. 2011 ; Yang et al. 2011 ; Zhong et al. 2020 ).

For surface water pre-treatment, Burnett et al. ( 2012 ) used MnO 2 co-precipitation to pre-concentrate 210 Pb. Potassium permanganate and manganese chloride were added to the water sample to generate manganese dioxide precipitation. This approach enabled swift pre-concentration of 210 Pb from large volume of water samples.

Human urine has a relatively complex matrix with high total dissolved solids and salt content, which needs to be pretreated to reduce matrix effects before chemical separation (Kang et al. 2021 ). Muikku et al. ( 2011 ) determined 210 Pb activity concentrations in urine by microwave-assisted acid digestion after adding concentrated HNO 3 and 209 Po to 90 mL of sample. The use of microwave digestion minimizes the operational time and consumption of reagents and energy (Mingote and Nogueira 2016 ). However, it cannot completely eliminate the influence of urine matrix; therefore, further separation and purification were followed.

Separation and purification

Chemical separation and purification are often necessary to remove interferences, and obtain purified and concentrated target analyte. As 210 Pb can be measured directly for its gamma or beta decay activity, or indirectly via its decay product 210 Po ( α emitter) or 210 Bi ( β emitter) (see details in the “ Measurement ” section), therefore, the separation and purification methods were designed accordingly based on the target radionuclide in the detection. For example, interferences to the direct measurement of 210 Pb beta activity are not only its two progenies but also all other beta emitters and its chemically similar stable elements, such as Ra and Sr. In the cases of indirect measurement through 210 Po, interferes include all other alpha emitters, such as 212 Bi, and some ions, such as Fe 3+ and Cr 6+ . And in the indirect measurement through 210 Bi, interferes include all other high-energy beta emitters, such as 226 Ra.

Conventional methods for 210 Pb radiochemical separation include solvent extraction, solid phase extraction, precipitation, or ion exchange chromatography, which are usually applied in combined fashion. However, these separation methods require long time processing (Grate et al. 2020 ). Over the past decades, highly selective extraction chromatographic materials, such as Sr resin and PS rein (Gimenez et al. 2023 ; Mingote and Nogueira 2016 ), have been developed to simplify 210 Pb separation, and new methods involving a degree of automated separation have also been explored. For example, 210 Pb was separated from phosphogypsum using an on-line sequential injection (SI) system combined with an ion exchange column (Kim et al. 2008 ). With the development of flow technology, an advanced lab-on-valve (LOV)—multisyringe flow injection analysis (MSFIA) system was successfully applied to determine 90 Sr and 210 Pb (Mola et al. 2014 ). Flow analysis technology can shorten the analysis time, reduce the consumption of samples and reagents, and thus produce less radioactive waste.

Precipitation

Lead sulfate (PbSO 4 ) precipitation is often used to remove most of the alkaline earth elements. Depending on the solubility, Pb can be separated from Ra(Ba) and Sr in their sulfate/carbonate precipitates (Wang et al. 2019 ).

As the nitrates of Pb(II) and alkaline earth elements are insoluble in highly concentrated nitric acid (Ostanova et al. 2002 ), Ra and Pb (precipitate) could be separated from the interfering radionuclides (e.g., U, Th radioisotopes) which are soluble in these media. For example, Lozano et al. ( 2010 ) utilized the insoluble properties of Pb(NO 3 ) 2 (Ra) in 69% nitric acid medium, and separated Pb(Ra) from U and Th. However, due to the low selectivity of the precipitation method, it is often combined with other separation and purification methods, such as solvent extraction and/or chromatographic separation (Vasile et al. 2016 ).

Solvent extraction

Solvent extraction is a method of extracting radionuclides from aqueous phase with organic extractants (Deng and Lin 2022 ). Solvent extraction can be used to separate 210 Pb (or 210 Po, 210 Bi) from other interfering elements based on their different solubilities in different solvents.

Uddin et al. ( 2015 ) used diethyldithiocarbamate diethylamine trichloromethane (DDTC) solution to extract 210 Po for seawater analysis. Diammonium hydroxide citrate (DHC) also has the potential for lead extraction. Fons-Castells et al. ( 2017 ) proposed a procedure to simultaneously extract and measure 210 Pb, 228 Ra, and 226 Ra in drinking water. 210 Pb was selectively extracted from RAD disk with DHC at a pH of 5.75.

It is reported that 210 Po can be extracted from HCl solution with tributyl phosphate (TBP) and trioctylamine (TOA) (Younes et al. 2017 ), or 5% (w/v) trioctylphosphine oxide (TOPO) solution (Grabowski & Bem 2010 ). 210 Bi was extracted with xylene with triiso-octylamine (TIOA) in 1 M HCl for air filter analysis, wherein 1 M HCl solution was used for leaching 210 Bi from the filter (Dlugosz-Lisiecka 2019 ).

Chromatographic separation

Mno 2 fiber-column adsorption for 210 pb.

The adsorption rate of all types of MnO 2 particles to Pb was reported higher than 85% (Burnett et al. 2012 ). Aviv et al. ( 2022 ) proposed a method for the determination of 210 Pb in drinking water, in which the water sample was filtered through an acrylic fiber impregnated with MnO 2 . After drying in an oven, the fiber was directly measured by a low background γ spectrometer to obtain the activity of 210 Pb. In the analysis of 210 Pb in water samples, the combination of ferric hydroxide precipitation and chromatographic separation is also one of the common methods for separating 210 Pb, and this method has been widely used in combination with various measurement techniques (e.g., LSC, ICP-MS) (Baskaran et al. 2018 ; Villa-Alfageme et al. 2016 ).

Ion exchange chromatography

Ion exchange chromatography is based on the different affinities of ions and polar molecules onto ion exchangers to separate the target analyte from interfering elements (Zhou et al. 2022 ). Ion exchange chromatography is one of the common methods for 210 Pb, 210 Po, and/or 210 Bi separation and purification.

Huang et al. ( 2013 ) observed that compared with cation exchange resin, anion exchange resin is more effective to separate Pb and Bi from other interferences. The anion exchange resin exhibited the highest adsorption capacity and the best ability to separate impurities in the media of 1.0 mol/L HCl. The detailed separation procedure is outlined in Fig.  3 . Dlugosz-Lisiecka and Bem ( 2012 ) reported the use of DOWEX anionic reins to separate 210 Po, 210 Pb, and 210 Bi from each other, wherein 210 Bi radionuclide was eluted by 100 mL of 1.8 M H 2 SO 4 with an average chemical yield of 80 ± 10%.

Flow chart of ion exchange chromatographic separation for 210 Pb in water

Cation exchange resin, such as AG 50W × 8, can separate and purify Po in an acidic environment (< 0.2 M HCl). As the resin contains sulfonic acid functional groups, Po can be eluted first in 0.2 M HCl, followed by Bi in 0.4 M HCl and finally Pb in 2 M HCl. The chemical yield when using AG 50W × 8 cation exchange chromatography was 84.3 ± 0.6% for Pb, 87 ± 1% for Bi, and 92 ± 5% for Po, respectively (Kmak et al. 2017 ).

Extraction chromatography

Sr resin, which consists of 4,4′(5′)-di-t-butylcyclohexano 18-crown-6 in 1-octanol, is a recently developed material for the separation of various inorganic substances based on its different adsorption capacities and selectivity of different target ions (Kong et al. 2021 ). Since Vajda et al. ( 1997 ) proposed the use of Sr resin for the analysis of 210 Pb and 210 Po, it has become widely adopted for determination of 210 Pb and/or 210 Pb in sediment, biological, and water samples. Polonium can be eluted with 6 M HNO 3 , and lead is eluted with 6 M HCl (Kong et al. 2021 ; Rozmaric et al. 2013 ), as outlined in Fig.  4 . In addition, DGA resin has also been used to separate and purify 210 Po in acidic media (e.g., < 1.5 M HCl), eliminating potential alpha emitting interferences (Maxwell et al. 2019 ).

Analytical procedure for 210 Pb using Sr or PS rein

The recently developed plastic scintillation (PS) resin integrates chemical separation and source preparation into a single step. PS resin is made by fixing a radionuclide selective extractant in a plastic scintillation microsphere, which can be placed in a solid phase extraction (SPE) cartridge. The target radionuclide is retained in the SPE cartridge, and then measured directly by LSC (Gimenez et al. 2023 ). Martinez et al. ( 2023 ) employed PS resin in the analysis of sludge samples collected from drinking water treatment plants. The PS resin selectively retained three radionuclides ( 210 Po, 210 Pb, and 90 Sr), and effectively separated 210 Po from 210 Pb and 90 Sr, enabling the simultaneous determination of 210 Pb and 90 Sr. The procedure, as outlined in Fig.  4 , involved loading the digested sample onto the PS resin, from which 210 Po was eluted with 8 mol/L HNO 3 separated from 210 Pb and 90 Sr solution.

Compared to traditional extraction chromatographic resin (e.g., Sr and DGA), PS resin offers advantages of reduced amounts of reagents and labor required for the analysis, preventing the generation of organic liquid wastes (Bagan et al. 2009 , 2012 ; Barrera et al. 2016 ).

Source preparation

Source preparation for gamma spectrometry.

Gamma spectrometry does not require complex chemical separation. For aerosol samples collected with a silica or glass fiber filter, they can be placed in a metal mold and compacted into a known geometry using a hydraulic press for direct gamma spectrometry measurement (Abe et al. 2010 ). However, direct measurement of 210 Pb by γ spectrometry in water samples without pretreatment is usually not possible due to the low concentrations of 210 Pb (Aviv et al. 2022 ). For water samples, co-precipitation with MnO 2 (Yang and Appleby 2016 ) as mentioned in the pretreatment section is usually performed prior to the direct measurement of 210 Pb by γ spectrometry. For samples of soil, sediment, ore, etc., the pre-treated samples are packed into suitable containers with known geometry for the γ spectrometry measurement (Charro and Pena 2013 ; Khater and Bakr 2011 ; Li et al. 2011 ).

Source preparation for LSC

The source preparation for 210 Pb measurement by LSC can be performed following the two approaches: (1) Aqueous samples are counted directly for Cherenkov radiation without the addition of scintillation cocktail. Herein, 210 Pb is measured indirectly through its daughter 210 Bi (Stojkovic et al. 2022 ). (2) Samples are counted after mixing the purified 210 Pb fraction with cocktail. Prior to mixing with cocktail, 210 Pb fraction is typically concentrated as precipitation of lead oxalate, lead sulfate, or lead chromate, and then dissolved with diluted acid (e.g., HNO 3 (Barlas Simsek and Cagatay 2014 )) to reduce the quenching effect. Due to the color quenching effect of lead chromate on LSC, it is recommended to precipitate in the form of lead oxalate (Blanco et al. 2004 ).

Source preparation for α  spectrometry

The polonium sources for alpha spectrometry measurement can be prepared using spontaneous deposition or microprecipitation (e.g., CuS (Guerin and Dai 2015 ) and tellurium (Song et al. 2017 ) microprecipitation). The spontaneous deposition is the most commonly used, in which polonium is deposited in a metal dish in an acidic environment with stirring and heating in a water bath (80–96 ℃) for 4–6 h (Guerin and Dai 2014 ; Narayana and Prakash 2010 ). Polonium can be deposited not only on Ag but also on Ni, stainless steel, and other metal surfaces. Silver proved to be a superior electroplating metal, as it can minimize the loss of polonium during the deposition (Henricsson et al. 2011 ). In addition, studies have shown that the highest deposition efficiency of Po was achieved when high purity (99.99%) of silver disks was applied (Lee and Chae 2023 ). The deposition time of Po on the silver disks should not be too long, because studies have shown that when the deposition time exceeded 3 h, measurement of 210 Po was hindered as the silver disks were covered by oxides and other compounds, resulting in reduced peak resolution of 210 Po (Szarlowicz 2019 ).

Source preparation for 210 Bi

The primary source preparation method for 210 Bi involves precipitation. PbSO 4 precipitate obtained from the chemical separation and purification is left for 5 days on a metal plate to allow for the ingrowth of 210 Bi. Subsequently, it is counted by gas-flow proportional counter (May et al. 2017 ). Alternatively, 210 Bi can be precipitated as Bi 2 S 3 and filtered, dried, and measured by low background β counter (Meli et al. 2011 ).

Measurement

To detect 210 Pb, besides the approach of directly measuring the activity of 210 Pb, alternative approaches involve deriving the activity concentration of 210 Pb by detecting its two decay products, 210 Po or 210 Bi.

Indirect method

Α spectrometry (via 210 po).

Alpha spectrometry is a detection method to quantify the activity concentration of 210 Pb by measuring the α decay of its granddaughter 210 Po. After chemical separation, the processed samples are placed in a semiconductor detector to measure the activity of 210 Po after the spontaneous deposition on a metal surface (e.g., Ag) (Laureano-Perez et al. 2007 ; Stastna et al. 2010 ). Kilic et al. ( 2014 ) used an alpha spectrometer to measure the activity concentrations of 210 Po deposited on a silver disk for at least 48 h. When 209 Po or 208 Po is used as an internal tracer for 210 Po, spontaneous deposition may not be able to quantitatively remove all Po, and the residual Po ( 209 Po or 208 Po and 210 Po) can possibly affect the analytical accuracy. In such cases, it is necessary to remove Po by ion exchange separation, such as with DOWEX (Baskaran 2011 ; Baskaran et al. 2013 ). After waiting for 6 months to allow the ingrowth of 210 Po from 210 Pb, the samples were re-plated and the activity concentrations of 210 Pb can be calculated after the second self-deposition. Alpha spectrometry is featured for its low background, high counting efficiency. The main disadvantage of this method is that it takes 6–9 months to allow the ingrowth of 210 Po from 210 Pb, so it is not suitable for processing a large number of samples. In addition, polonium is easily adsorbed on the wall of the sample container, so it will suffer losses, resulting in poor repeatability (Cuesta et al. 2022 ; Vesterbacka and Ikäheimonen 2005 ). Finally, the recovery rate of Pb could not be evaluated by this method. To determine the recovery rate of 210 Pb, it can be achieved by measuring stable Pb using ICP-MS (Walsh et al. 2023 ).

β counting (via 210 Bi)

According to “Method for Analysis of Lead-120 in Water” (CNIC 1994 ) (industry standard EJ/T 859–1994), 210 Pb was indirectly determined by measuring the radioactivity of its daughter 210 Bi. Due to the relatively short half-life (5 days) of 210 Bi, the equilibrium state between 210 Pb and 210 Bi is assumed to be reached and maintained throughout the analytical process, from sample collection to the actual measurement. In cases where 210 Pb and 210 Bi in the sample do not reach the radioactive equilibrium, the sample is left for about 1 month for the ingrowth of 210 Bi. β counting is a widely used technique for measuring 210 Bi (Jia 2018 ; Strok and Smodis 2011 ). The detection limit of this method is one order of magnitude higher than that of α spectrometry method, for example, LOD of ~ 8 mBq by β counting vs. 0.03–0.08 mBq by α spectrometry (Baskaran 2011 ).

Direct method

Γ spectrometry.

γ spectrometry was first proposed by F. Martinez-Ruiz et al. ( 2007 ). It can directly measure the γ photon with an energy of 46.5 keV generated by 210 Pb (Hussain et al. 1996 ). With improved measurement efficiency of modern γ spectrometers, the technology is finding increasing applications in various fields. As it involves simple and non-destructive sample preparation, γ spectrometry becomes the first choice for the determination of 210 Pb in many scenarios. For the analysis of small amount of samples with low activity of 210 Pb, the well-type HPGe detector is commonly used due to its greater counting efficient in measuring the low-energy gamma rays of 210 Pb (Sima 2000 ). However, due to the low γ ray energy of 210 Pb, low branching ratio (4.25%), the self-absorption effect within the sample becomes significant, and in many cases results in insufficient detection limit for environmental and biological applications (Gogrewe et al. 1996 ; Hussain et al. 1996 ). Many factors such as sample composition and density need to be calibrated for the full-energy peak efficiency, among which the self-absorption correction for 210 Pb measurement is particularly important (Hurtado et al. 2007 ). At present, semi-empirical methods and the Monte Carlo method are the most widely used methods to correct self-absorption effect (Bochud et al. 2006 ; Iurian et al. 2018 ).

LSC is a sensitive technique for the measurement of soft beta radiation, allowing for the direct quantification of 210 Pb (Vajda et al. 1997 ). It exhibits reduced self-absorption and high counting efficiency. However, this method is sensitive to chemical or color quenching, and it is also necessary to correct the influence of 210 Bi which requires repeated lengthy measurement (Hou and Roos 2008 ). The newly developed LSC calibration method by Strok et al. ( 2016 ) significantly improved the sensitivity of LSC for determining 210 Pb in environmental samples, which led to a two-fold increase in detection efficiency. One of the key advantages of this method was its precise evaluation of the detection efficiency of 210 Bi growth process. This allowed samples to be measured at any time after 210 Pb radiochemical separation, offering greater flexibility while maintaining a high degree of accuracy.

Vranes et al. ( 2021 ) found that 3-methylpyridine-salicylate (3-MPS) increased the efficiency of LSC measurements, suggesting that ionic liquids similar to 3-MPS could replace commercial LSC cocktails. Stojkovic et al. ( 2022 ) investigated the effect of various ionic liquids on the detection efficiency of a LSC instrument. Among the tested ionic liquids, they observed that only those containing salicylic acid anions showed a wavelength shift effect, which led to increased detection efficiency.

ICP-MS method

It is proposed in the literature (Amr et al. 2010 ) that the ICP-MS method is a feasible method to detect 210 Pb. Compared with the above-mentioned radiometric methods, the detection time of ICP-MS is significantly shortened to a few minutes for each sample. However, due to the interferences of 210 Bi and other polyatomic ions, thorough chemical separation and purification are still necessary. ICP-MS has been used to detect 210 Pb in a 1 L drinking water sample, and a detection limit of 90 mBqL −1 was reported (Lariviere et al. 2005 ). Due to such high detection limit for 210 Pb, ICP-MS has rarely been used for 210 Pb determination in environmental samples with low concentrations of 210 Pb. Blanchet-Chouinard and Lariviere ( 2022 ) proposed a novel procedure based on sequential cloud point extraction (CPE) to reduce detection limits, as CPE could selectively separate/concentrate the analyte, and enable on-line detection. In this study, 210 Pb isolated from the CPE system was analyzed by ICP-MS with an achieved detection limit of 13 mBqL −1 for a 0.35 L water sample. ICP-MS has only recently been applied for 210 Pb measurement, further improvement in detection limit is still needed.

Technical development for the determination of 210 Pb in environmental and biological samples, incorporating pretreatment, separation, purification, and measurement, is reviewed in this article, and the advantages and disadvantages of each technique are discussed in detail, as shown in Tables 3 and 4 . Both direct and indirect measurement methods have been applied for the determination of 210 Pb, with each having its own analytical merits. The indirect method through measuring its daughter 210 Bi or granddaughter 210 Po takes longer time and requires complicated chemical treatment. The direct method overcomes the limitation of indirect methods that rely on the equilibrium of 210 Pb and its decay products ( 210 Po or 210 Bi), whereas it still faces challenges related to self-absorption during γ spectrometry measurements and quenching effects in LSC. The on-going effort in scintillation cocktail development is useful to further improve the counting efficiency in LSC.

When the activity concentration of 210 Pb in a sample is low, the sample needs to be chemically separated, and the activity concentration of 210 Pb is typically determined through its daughter 210 Bi or its granddaughter 210 Po. However, this method is time-consuming. In situations where the 210 Pb concentration needs to be measured within a short time, direct measurement of 210 Pb by gamma spectrometry or liquid scintillation counting is a method of choice. In addition, ICP-MS can be selected depending on the experimental conditions to achieve rapid screening.

Considering the impact on the environment and the concept of sustainable development, in the process of chemical analysis, sample preparation is considered to be the main source of pollution (Cerutti et al. 2019 ; Lopez-Lorente et al. 2022 ). The concept of green sample preparation and green analytical chemistry is the main trend of analysis today. They all achieve sustainability by reducing the amounts of pollutants in the analysis process (Lopez-Lorente et al. 2022 ). Therefore, bearing this in mind, when acid digestion is used for sample pretreatment, microwave-induced digestion may be considered the first option to reduce the acid consumption and save energy (Bizzi et al. 2017 ). For separation and purification, solid phase microextraction (SPE) can be regarded as a solvent-free extraction technology, which provides possibilities for green environmental protection. Besides, it requires shorter processing time and simpler operation compared with conventional separation methods (Risticevic et al. 2009 ; Wang et al. 2011 ). Moreover, in recent years, the focus of research has shifted towards designing and developing highly selective new materials that can facilitate the efficient separation and enrichment of 210 Pb.

With the new development of artificial intelligent (AI), the application automation in radiochemical analysis will undoubtedly reduce reagent consumption and labor intensity, as well as improve sample throughput and operational safety. By far, many automated methods have been developed, but mostly coupled offline with the measurement. Collaborations between material science and other disciplines will likely play a crucial role in shaping the future of 210 Pb methodologies. We foresee improvement on this basis and integrate it into the analysis process to achieve online chemical separation and measurement.

Data Availability

Not applicable—no primary data was generated for this manuscript.

Abe T, Kosako T, Komura K (2010) Relationship between variations of Be-7, Pb-210 and Pb-212 concentrations and sub-regional atmospheric transport: simultaneous observation at distant locations. J Environ Radioact 101(2):113–121. https://doi.org/10.1016/j.jenvrad.2009.09.004

Article   CAS   Google Scholar  

Akozcan S (2013) Levels of 210 Po and 210 Pb in mussel and sediments in Candarli Gulf and the related dose assessment to the coastal population. Mar Pollut Bull 73(1):11–15. https://doi.org/10.1016/j.marpolbul.2013.06.016

Al-Masri MS, Haddad K, Doubal AW, Awad I, Al-Khatib Y (2014) Assessment of soil contamination by (210)Po and (210)Pb around heavy oil and natural gas fired power plants. J Environ Radioact 132:89–93. https://doi.org/10.1016/j.jenvrad.2014.01.018

Amr MA, Al-Saad KA, Helal AI (2010) Ultra-trace measurements of Pb in natural occurring radioactive materials by ICP-MS. Nucl Instrum Methods Phys Res A 615(2):237–241. https://doi.org/10.1016/j.nima.2010.01.036

Aviv O, Vaknin D, Yungrais Z, Shonkor S, Haquin G, Datz H (2022) A rapid method for determining low concentrations of 210 Pb in drinking water using MnO 2 fibers. J Environ Radioact 253–254:107015. https://doi.org/10.1016/j.jenvrad.2022.107015

Bagan H, Hartvig S, Tarancon A, Rauret G, Garcia JF (2009) Plastic vs. liquid scintillation for 14 C radiotracers determination in high salt matrices. Analytica Chimica Acta 631(2):229–236. https://doi.org/10.1016/j.aca.2008.10.036

Bagan H, Tarancon A, Stavsetra L, Rauret G, Garcia JF (2012) Determination of oil reservoir radiotracer (S14CN-) in a single step using a plastic scintillator extractive resin. Anal Chim Acta 736:30–35. https://doi.org/10.1016/j.aca.2012.05.045

Bao K, Shen J, Wang G, Gao C (2015) Anthropogenic black carbon emission increase during the last 150 years at Coastal Jiangsu. China Plos One 10(7):e0129680. https://doi.org/10.1371/journal.pone.0129680

Barba-Lobo A, San Miguel EG, Lozano RL, Bolivar JP (2021) A general methodology to determine natural radionuclides by well-type HPGe detectors. Measurement 181:109561

Article   Google Scholar  

Barlas Simsek F, Cagatay MN (2014) Geochronology of lake sediments using (210)Pb with double energetic window method by LSC: an application to Lake Van. Appl Radiat Isot 93:126–133. https://doi.org/10.1016/j.apradiso.2014.01.028

Barrera J, Tarancon A, Bagan H, Garcia JF (2016) A new plastic scintillation resin for single-step separation, concentration and measurement of technetium-99. Anal Chim Acta 936:259–266. https://doi.org/10.1016/j.aca.2016.07.008

Baskaran KV, Blanchet-Chouinard G, Larivière D (2018) Attogram measurement of 210 Pb in drinking water by ICP-MS/MS. J Anal at Spectrom 33(4):603–612. https://doi.org/10.1039/c7ja00408g

Baskaran M (2011) Po-210 and Pb-210 as atmospheric tracers and global atmospheric Pb-210 fallout: a review (vol 102, pg 500, 2011). J Environ Radioact 102(12):1126–1126. https://doi.org/10.1016/j.jenvrad.2011.09.010

Baskaran M, Church T, Hong G, Kumar A, Qiang M, Choi H, Maiti K (2013) Effects of flow rates and composition of the filter, and decay/ingrowth correction factors involved with the determination of in situ particulate Po and Pb in seawater. Limnol Oceanogr Meth 11:126–138. https://doi.org/10.4319/lom.2013.11.126

Baskaran M, Coleman CH, Santschi PH (1993) Atmospheric depositional fluxes of Be-7 and Pb-210 at Galveston and College-Station Texas. J Geophys Res Atmos 98(D11):20555–20571. https://doi.org/10.1029/93jd02182

Biggin CD, Cook GT, MacKenzie AB, Pates JM (2002) Time-efficient method for the determination of 210 Pb, 210 Bi, and 210 Po activities in seawater using liquid scintillation spectrometry. Anal Chem 74(3):671–677. https://doi.org/10.1021/ac0107599

Bizzi CA, Pedrotti MF, Silva JS, Barin JS, Nobrega JA, Flores EMM (2017) Microwave-assisted digestion methods: towards greener approaches for plasma-based analytical techniques. J Anal Spectrom 32(8):1448–1466. https://doi.org/10.1039/c7ja00108h

Blanchet-Chouinard G, Lariviere D (2022) Rapid determination of 210 Pb and 210 Po by sequential cloud point extraction for environmental monitoring. Anal Methods 14(2):199–202. https://doi.org/10.1039/d1ay01862k

Blanco P, Lozano JC, Gomez Escobar V, Vera Tome F (2004) A simple method for 210 Pb determination in geological samples by liquid scintillation counting. Appl Radiat Isot 60(1):83–88. https://doi.org/10.1016/j.apradiso.2003.09.011

Blanco Rodriguez P, Vera Tome F, Lozano JC (2014) Assessment of the vertical distribution of natural radionuclides in a mineralized uranium area in south-west Spain. Chemosphere 95:527–534. https://doi.org/10.1016/j.chemosphere.2013.09.111

Bochud F, Bailat CJ, Buchillier T, Byrde F, Schmid E, Laedermann JP (2006) Simple Monte-Carlo method to calibrate well-type HPGe detectors. Nucl Instrum Methods Phys Res A 569(3):790–795. https://doi.org/10.1016/j.nima.2006.09.040

Bonotto DM, Vergotti M (2015) (210)Pb and compositional data of sediments from Rondonian lakes, Madeira River basin, Brazil. Appl Radiat Isot 99:5–19. https://doi.org/10.1016/j.apradiso.2015.02.002

Burnett JL, Croudace IW, Warwick PE (2012) Pre-concentration of short-lived radionuclides using manganese dioxide precipitation from surface waters. J Radioanal Nucl Chem 292(1):25–28. https://doi.org/10.1007/s10967-011-1392-4

Carvalho FP (1995) Origins and concentrations of Rn-222, Pb-210, Bi-210 and Po-210 in the surface air at Lisbon, Portugal, at the Atlantic edge of the European continental landmass. Atmos Environ 29(15):1809–1819. https://doi.org/10.1016/1352-2310(95)00076-B

Castellino N, Aloj S (1964) Kinetics of the distribution and excretion of lead in the rat. Br J Ind Med 21(4):308–314. https://doi.org/10.1136/oem.21.4.308

Cerutti S, Pacheco PH, Gil R, Martinez LD (2019) Green sample preparation strategies for organic/inorganic compounds in environmental samples. Curr Opin Green Sustain Chem 19:76–86. https://doi.org/10.1016/j.cogsc.2019.08.007

Chandrashekara K, Somashekarappa HM (2016) Po-210 and Pb-210 in medicinal plants in the region of Karnataka, Southern India. J Environ Radioact 160:87–92. https://doi.org/10.1016/j.jenvrad.2016.04.036

Charro E, Pena V (2013) Environmental impact of natural radionuclides from a coal-fired power plant in Spain. Radiat Prot Dosimetry 153(4):485–495. https://doi.org/10.1093/rpd/ncs126

Chen J, Rennie MD, Sadi B, Zhang W, St-Amant N (2016) A study on the levels of radioactivity in fish samples from the experimental lakes area in Ontario, Canada. J Environ Radioact 153:222–230. https://doi.org/10.1016/j.jenvrad.2016.01.005

CNIC (1994) Method for analysis of lead-210 in water. EJ/T 859–1994:1994

Google Scholar  

Cohen N, Howells GP (1969) A brief review of 210 Pb metabolism. HASL-204. HASL Rep I81–97. https://www.ncbi.nlm.nih.gov/pubmed/4902859 . Accessed 8 Oct 2023

Cuesta E, Barba-Lobo A, Lozano RL, San Miguel EG, Mosqueda F, Bolivar JP (2022) A comparative study of alternative methods for Pb-210 determination in environmental samples. Radiat Phys Chem 191:109840. https://doi.org/10.1016/j.radphyschem.2021.109840

Dai Z, Yang Q, Ye Q (2015) A discussion about the three digestion methods for aluminum detection in food. Med J of Commun 29(03):312–314

Deng F, Lin F (2022) Measurement of 90 Sr in marine biological samples. Molecules 27(12):3730. https://doi.org/10.3390/molecules27123730

Diaz-Asencio M, Corcho-Alvarado JA, Cartas-Aguila H, Pulido-Caraballe A, Betancourt C, Smoak JM, Seisdedo-Losa M (2017) Pb-210 and Cs-137 as tracers of recent sedimentary processes in two water reservoirs in Cuba. J Environ Radioact 177:290–304. https://doi.org/10.1016/j.jenvrad.2017.07.005

Dlugosz-Lisiecka M (2019) Chemometric methods for source apportionment of 210 Pb, 210 Bi and 210 Po for 10 years of urban air radioactivity monitoring in Lodz city, Poland. Chemosphere 220:163–168. https://doi.org/10.1016/j.chemosphere.2018.12.042

Dlugosz-Lisiecka M, Bem H (2012) Determination of the mean aerosol residence times in the atmosphere and additional 210 Po input on the base of simultaneous determination of 7Be, 22Na, 210Pb, 210Bi and 210Po in urban air. J Radioanal Nucl Chem 293(1):135–140. https://doi.org/10.1007/s10967-012-1690-5

Eikenberg J, Beer H, Jaggi M (2014) Determination of (210)Pb and (226)Ra/(228)Ra in continental water using HIDEX 300SL LS-spectrometer with TDCR efficiency tracing and optimized alpha/beta-discrimination. Appl Radiat Isot 93:64–69. https://doi.org/10.1016/j.apradiso.2014.02.021

El Afifi EM, Borai EH (2006) Performance characteristics of sequential separation and quantification of lead-210 and polonium-210 by ion exchange chromatography and nuclear spectrometric measurements. J Environ Qual 35(2):568–574. https://doi.org/10.2134/jeq2005.0223

Fernández PL, Gómez J, Ródenas C (2012) Evaluation of uncertainty and detection limits in Pb and Po measurement in water by alpha spectrometry using Po spontaneous deposition onto a silver disk. Appl Radiat Isot 70(4):758–764. https://doi.org/10.1016/j.apradiso.2011.12.044

Fons-Castells J, Oliva J, Tent-Petrus J, Llaurado M (2017) Simultaneous determination of 226 Ra, 228 Ra and 210 Pb in drinking water using 3M Empore RAD disk by LSC-PLS. Appl Radiat Isot 124:83–89. https://doi.org/10.1016/j.apradiso.2017.03.016

Franklin RL, Fávaro DIT, Damatto SR (2016) Trace metal and rare earth elements in a sediment profile from the Rio Grande Reservoir, Sao Paulo, Brazil: determination of anthropogenic contamination, dating, and sedimentation rates. J Radioanal Nucl Chem 307(1):99–110. https://doi.org/10.1007/s10967-015-4107-4

Gimenez I, Rotger J, Apellaniz E, Bagan H, Tent J, Rigol A, Tarancon A (2023) A new method based on selective fluorescent polymers (PSresin) for the analysis of 90 Sr in presence of 210 Pb in environmental samples. Appl Radiat Isot 199:110879. https://doi.org/10.1016/j.apradiso.2023.110879

Godoy JM, Siciliano S, de Carvalho ZL, Tavares DC, de Moura JF, Godoy ML (2014) (210)Polonium and (210)lead content of marine birds from Southeastern Brazil. J Environ Radioact 135:108–112. https://doi.org/10.1016/j.jenvrad.2014.04.008

Gogrewe D, Putz M, Weber R, Siemon K, Esterlund RA, Patzelt P (1996) Determination of Pb-210 via Bi-210 using a hydride generation technique combined with beta-spectrometry. Radiochimica Acta 73(2):105–110

Grabowski P, Bem H (2010) Determination of (210)Po and uranium in high salinity water samples. J Radioanal Nucl Chem 286(2):455–460. https://doi.org/10.1007/s10967-010-0720-4

Grabowski P, Dlugosz M, Szajerski P, Bem H (2010) A comparison of selected natural radionuclide concentrations in the thermal groundwater of Mszczonow and Cieplice with deep well water from Lodz city Poland. Nukleonika 55(2):181–185

CAS   Google Scholar  

Grate JW, O’Hara MJ, Egorov OB (2020) Chapter 11 - Automated radiochemical separation, analysis, and sensing. In: L’Annunziata MF (ed) Handbook of radioactivity analysis, vol 2, 4th edn. Academic Press, pp 821–872

Chapter   Google Scholar  

Guerin N, Dai X (2014) Determination of 210Po in drinking water and urine samples using copper sulfide microprecipitation. Anal Chem 86(12):6026–6031. https://doi.org/10.1021/ac501164f

Guerin N, Dai X (2015) An emergency bioassay method for 210 Po in urine. Appl Radiat Isot 103:179–184. https://doi.org/10.1016/j.apradiso.2015.06.013

Henricsson F, Ranebo Y, Holm E, Roos P (2011) Aspects on the analysis of 210 Po. J Environ Radioact 102(5):415–419. https://doi.org/10.1016/j.jenvrad.2010.09.010

Hou X, Roos P (2008) Critical comparison of radiometric and mass spectrometric methods for the determination of radionuclides in environmental, biological and nuclear waste samples. Anal Chim Acta 608(2):105–139. https://doi.org/10.1016/j.aca.2007.12.012

Huang X, & Zhu X (1981). Methods for the analysis of lead-210 in environmental samples Foreign Medicine (Part of Radiology) (03), 137–142

Huang Z, Wu Q, Tang Z, Cao Z, Yu Y, Chen G (2013) Rapid analysis of 210 Pb nuclide activity in environment water. Nucl Technol 36(07):49–56

Hurtado-Bermudez S, Jurado-Gonzalez JA, Santos JL, Diaz-Amigo CF, Aparicio I, Mas JL, Alonso E (2018) Baseline activity concentration of 210 Po and 210 Pb and dose assessment in bivalve molluscs at the Andalusian coast. Mar Pollut Bull 133:711–716. https://doi.org/10.1016/j.marpolbul.2018.06.034

Hurtado S, Villa-Alfageme M, Manjón G, García-Tenorio R (2007) A self-sufficient and general method for self-absorption correction in gamma-ray spectrometry using GEANT4. Nucl Instrum Methods Phys Res A 580(1):234–237. https://doi.org/10.1016/j.nima.2007.05.090

Hussain N, Kim G, Church TM, Carey W (1996) A simplified technique for gamma-spectrometric analysis of Pb-210 in sediment samples. Appl Radiat Isot 47(4):473–477. https://doi.org/10.1016/0969-8043(95)00319-3

Iurian AR, Millward GE, Sima O, Taylor A, Blake W (2018) Self-attenuation corrections for Pb-210 in gamma-ray spectrometry using well and coaxial HPGe detectors. Appl Radiat Isot 134:151–156. https://doi.org/10.1016/j.apradiso.2017.06.048

Jia G (2018) Simultaneous determination of 210Po and 210Pb in solid samples: a new method for 210Pb determination. Appl Radiat Isot 137:12–17. https://doi.org/10.1016/j.apradiso.2018.02.019

Jia G, Torri G (2007) Determination of 210 Pb and 210 Po in soil or rock samples containing refractory matrices. Appl Radiat Isot 65(1):1–8. https://doi.org/10.1016/j.apradiso.2006.05.007

Kanai Y (2013) High activity concentrations of 210 Pb and 7 Be in sediments and their histories. J Environ Radioact 124:44–49. https://doi.org/10.1016/j.jenvrad.2013.03.009

Kang C, Lee J, Lee KS (2021) Validated measurement of uranium in a human urine standard reference material by ICP-MS with the standard addition method. Radiat Prot Dosimetry 194(2–3):153–162. https://doi.org/10.1093/rpd/ncab091

Khater AE, Bakr WF (2011) Technologically enhanced 210 Pb and 210 Po in iron and steel industry. J Environ Radioact 102(5):527–530. https://doi.org/10.1016/j.jenvrad.2011.02.002

Kilic O, Belivermis M, Cotuk Y, Topcuoglu S (2014) Radioactivity concentrations in mussel (Mytilus galloprovincialis) of Turkish Sea coast and contribution of 210 Po to the radiation dose. Mar Pollut Bull 80(1–2):325–329. https://doi.org/10.1016/j.marpolbul.2013.12.037

Kılıç Ö, Belivermiş M, Gözel F, Carvalho FP (2014) Radioactivity levels in mussels and sediments of the Golden Horn by the Bosphorus Strait Marmara Sea. Mar Pollut Bull 86(1–2):555–561. https://doi.org/10.1016/j.marpolbul.2014.06.033

Kim CK, Kim CS, Sansone U, Martin P (2008) Development and application of an on-line sequential injection system for the separation of Pu, 210 Po and 210 Pb from environmental samples. Appl Radiat Isot 66(2):223–230. https://doi.org/10.1016/j.apradiso.2007.08.006

Kmak KN, Despotopulos JD, Shaughnessy DA (2017) Separation of Pb, Bi and Po by cation exchange resin. J Radioanal Nucl Chem 314(2):985–989. https://doi.org/10.1007/s10967-017-5487-4

Kong X, Yin L, Ji Y (2021) Simultaneous determination of 210 Pb and 210 Po in seafood samples using liquid scintillation counting. J Environ Radioact 231:106553.  https://doi.org/10.1016/j.jenvrad.2021.106553

Kpeglo DO, Mantero J, Darko EO, Emi-Reynolds G, Akaho EH, Faanu A, Garcia-Tenorio R (2015) Radiological exposure assessment from soil, underground and surface water in communities along the coast of a shallow water offshore oilfield in Ghana. Radiat Prot Dosimetry 163(3):341–352. https://doi.org/10.1093/rpd/ncu197

Kristensen JT, Hou XL (2023) A rapid method for determination of Po in soil and sediments without the use of HF. J Radioanal Nucl Chem 332(4):953–957. https://doi.org/10.1007/s10967-022-08667-6

Krmar M, Radnovic D, Hansman J (2014) Correlation of unsupported Pb-210 activity in soil and moss. J Environ Radioact 129:23–26. https://doi.org/10.1016/j.jenvrad.2013.11.009

Lariviere D, Reiber KM, Evans RD, Cornett RJ (2005) Determination of Pb-210 at ultra-trace levels in water by ICP-MS. Anal Chim Acta 549(1–2):188–196. https://doi.org/10.1016/j.aca.2005.06.020

Laureano-Perez L, Colle R, Fitzgerald R, Outola I, Pibida L (2007) A liquid-scintillation-based primary standardization of 210 Pb. Appl Radiat Isot 65(12):1368–1380. https://doi.org/10.1016/j.apradiso.2007.06.012

Lee HW, Chae JS (2023) Experimental optimization of physicochemical factors for spontaneous deposition of 210 Po using newly designed deposition kit. Appl Radiat Isotopes 197:110835

Leggett RW (1993) An age-specific kinetic model of lead metabolism in humans. Environ Health Perspect 101(7):598–616. https://doi.org/10.1289/ehp.93101598

Li C, Feng Y, Chen J, Kiser S, Zhang W, Zhu J (2008) Pb-210 in home dust as a possible marker for radon exposure in indoor air. Health Phys 95(4):436–439. https://doi.org/10.1097/01.HP.0000319040.06505.4a

Li Y, Geng XC, Yu HQ, Wan GJ (2011) Effects of the composition of standard reference material on the accuracy of determinations of 210 Pb and 137 Cs in soils with gamma spectrometry. Appl Radiat Isot 69(2):516–520. https://doi.org/10.1016/j.apradiso.2010.10.023

Lluch E, Barrera J, Tarancon A, Bagan H, Garcia JF (2016) Analysis of Pb-210 in water samples with plastic scintillation resins. Anal Chim Acta 940:38–45. https://doi.org/10.1016/j.aca.2016.08.004

Lopez-Lorente AI, Pena-Pereira F, Pedersen-Bjergaard S, Zuin VG, Ozkan SA, Psillakis E (2022) The ten principles of green sample preparation. Trac-Trends Analyt Chem 148:116530

Lozano JC, Tome FV, Rodriguez PB, Prieto C (2010) A sequential method for the determination of 210 Pb, 226 Ra, and uranium and thorium radioisotopes by LSC and alpha-spectrometry. Appl Radiat Isot 68(4–5):828–831. https://doi.org/10.1016/j.apradiso.2009.09.053

Mao W, Li B, Zhang L, Zhou W, Luo M (2018) Feasibility study about SPE analytical of 210 Pb in aerosol. Admin Technique Environ Monit 30(04):50–53. https://doi.org/10.19501/j.cnki.1006-2009.20180715.004

Martinez-Ruiz F, Borrego E, Miguel EGS, Bolivar JP (2007) An efficiency calibration for Pb-210 and Be-7 measurements by gamma-ray spectrometry in atmospheric filters. Nucl Instrum Methods Phys Res A 580(1):663–666. https://doi.org/10.1016/j.nima.2007.05.117

Martinez J, de Los Cobos M, Penalver A, Tarancon A, Gimenez I, Bagan H, Borrull F (2023) Simultaneous determination of (210)Pb and (90)Sr and (210)Po isolation in sludge samples using a plastic scintillation resin. Appl Radiat Isot 192:110601. https://doi.org/10.1016/j.apradiso.2022.110601

Matisoff G (2014) Pb-210 as a tracer of soil erosion, sediment source area identification and particle transport in the terrestrial environment. J Environ Radioact 138:343–354. https://doi.org/10.1016/j.jenvrad.2014.03.008

Maxwell SL, McAlister DR, Sudowe R (2019) Novel rapid oxidizing fusion method to determine polonium-210 in air filters. Appl Radiat Isotopes 153:108833

May D, Nelson AN, Schultz MK (2017) Quantitation of lead-210 ( 210 Pb) using lead-203 ( 203 Pb) as a “Massless” yield tracer. J Environ Radioact 171:93–98. https://doi.org/10.1016/j.jenvrad.2017.02.003

Meli MA, Cantaluppi C, Desideri D, Benedetti C, Feduzi L, Ceccotto F, Fasson A (2013) Radioactivity measurements and dosimetric evaluation in meat of wild and bred animals in central Italy. Food Control 30(1):272–279. https://doi.org/10.1016/j.foodcont.2012.07.038

Meli MA, Desideri D, Roselli C, Feduzi L (2011) Analytical methods to determine Po-210 and Pb-210 in marine samples. Microchem J 99(2):273–277. https://doi.org/10.1016/j.microc.2011.05.013

Melieres MA, Pourchet M, Richard S (2003) Surface air concentration and deposition of lead-210 in French Guiana: two years of continuous monitoring. J Environ Radioact 66(3):261–269. https://doi.org/10.1016/S0265-931X(02)00111-X

Mingote RM, Nogueira RA (2016) The use of statistical methods for censored data to evaluate the activity concentration of Pb-210 in beans (Phaseolus vulgaris L.). J Environ Radioact 162:160–165. https://doi.org/10.1016/j.jenvrad.2016.05.018

Mola M, Avivar J, Nieto A, Penalver A, Aguilar C, Ferrer L, Borrull F (2014) Determination of 90 Sr and 210 Pb in sludge samples using a LOV-MSFIA system and liquid scintillation counting. Appl Radiat Isot 86:28–35. https://doi.org/10.1016/j.apradiso.2013.11.123

Moore HE, Martell EA, Poet SE (1976) Sources of polonium-210 in atmosphere. Environ Sci Technol 10(6):586–591. https://doi.org/10.1021/es60117a005

Muikku M, Heikkinen T, Solatie D, Vesterbacka P (2011) Natural variation in 210 Po and 210 Pb activity concentrations in the urine of Finnish population groups. Radiat Environ Biophys 50(4):531–538. https://doi.org/10.1007/s00411-011-0385-6

Narayana Y, Prakash V (2010) Enrichment and vertical profiles of 210 Po and 210 Pb in monazite areas of coastal Karnataka. Appl Radiat Isot 68(6):1137–1142. https://doi.org/10.1016/j.apradiso.2010.01.018

Ostanova SV, Chubarov AV, Drozdov SV, Patrushev VV, Tatarenko AA (2002) Solubility of lead nitrate in aqueous solutions of nitric acid and zinc nitrate. Russ J Appl Chem 75(6):1024–1025. https://doi.org/10.1023/A:1020325821837

Pan LJ, Yu GB, Chen Z, Sheng LS, Xu XG (2018) A modified sampling preparation method for rapid determination of Pb-210 radioactivity in plants in China using crown ether and liquid scintillation counting of beta particles. J Radioanal Nucl Chem 317(1):565–570. https://doi.org/10.1007/s10967-018-5919-9

Peck GA, Smith JD (2000) Determination of Po and Pb in rainwater using measurement of Po and Bi. Anal Chim Acta 422(1):113–120. https://doi.org/10.1016/S0003-2670(00)01053-9

Persson BR, Holm E (2014) 7 Be, 210 Pb, and 210 Po in the surface air from the Arctic to Antarctica. J Environ Radioact 138:364–374. https://doi.org/10.1016/j.jenvrad.2014.01.008

Porto P, Walling DE, Cogliandro V, Callegari G (2016) Exploring the potential for using 210 Pb ex measurements within a re-sampling approach to document recent changes in soil redistribution rates within a small catchment in southern Italy. J Environ Radioact 164:158–168. https://doi.org/10.1016/j.jenvrad.2016.06.026

Risticevic S, Niri VH, Vuckovic D, Pawliszyn J (2009) Recent developments in solid-phase microextraction. Anal Bioanal Chem 393(3):781–795. https://doi.org/10.1007/s00216-008-2375-3

Rozmaric M, Rogic M, Benedik L, Strok M, Barisic D (2013) Seasonal and spatial variations of 210 Po and 210 Pb activity concentrations in Mytilus galloprovincialis from Croatian coast of the Adriatic Sea. Chemosphere 93(9):2063–2068. https://doi.org/10.1016/j.chemosphere.2013.07.039

Schayer SR, Qu Q, Wang Y, Cohen BS (2010) 210 Pb: a predictive biomarker of retrospective cigarette smoke exposure. Cancer Epidemiol Biomarkers Prev 19(2):338–350. https://doi.org/10.1158/1055-9965.EPI-09-1008

Schrag B, Uldin T, Mangin P, Froidevaux P (2012) Dating human skeletal remains using a radiometric method: biogenic versus diagenetic 90 Sr and 210 Pb in vertebrae. Forensic Sci Int 220(1–3):271–278. https://doi.org/10.1016/j.forsciint.2012.03.014

Seiler RL, Stillings LL, Cutler N, Salonen L, Outola I (2011) Biogeochemical factors affecting the presence of Po-210 in groundwater. Appl Geochem 26(4):526–539. https://doi.org/10.1016/j.apgeochem.2011.01.011

Sert E, Ugur A, Ozden B, Sac MM, Camgoz B (2011) Biomonitoring of Po-210 and Pb-210 using lichens and mosses around coal-fired power plants in Western Turkey. J Environ Radioact 102(6):535–542. https://doi.org/10.1016/j.jenvrad.2011.02.005

Sha L (2004) 210 Pb in the environment. Radiat Prot Bull 2:14–17

Sima O (2000) Accurate calculation of total efficiency of Ge well-type detectors suitable for efficiency calibration using common standard sources. Nucl Instrum Methods Phys Res A 450(1):98–108. https://doi.org/10.1016/S0168-9002(00)00254-0

Skuterud L, Gwynn JP, Gaare E, Steinnes E, Hove K (2005) Sr-90, Po-210 and Pb-210 in lichen and reindeer in Norway. J Environ Radioact 84(3):441–456. https://doi.org/10.1016/j.jenvrad.2005.04.016

Song L, Ma Y, Wang Y, Yang Y, Luo M, Dai X (2017) Method of polonium source preparation using tellurium microprecipitation for alpha spectrometry. Anal Chem 89(24):13651–13657. https://doi.org/10.1021/acs.analchem.7b04422

Stastna K, Fiala V, John J (2010) Preparation of samples for alpha-spectrometry by direct evaporation of extracted species. J Radioanal Nucl Chem 286(3):735–739. https://doi.org/10.1007/s10967-010-0733-z

Stojkovic I, Todorovic N, Nikolov J, Tenjovic B, Gadzuric S, Tot A, Vranes M (2020) 210 Pb/ 210 Bi detection in waters by Cherenkov counting - perspectives and new possibilities. Radiat Phys Chem 166:108474

Stojkovic I, Vranes M, Borovic TT, Todorovic N, Nikolov J, Zecevic M, Mancini S (2022) In search for an ionic liquid with the best performance during 210 Pb/ 210 Bi Cherenkov counting in waters on an LS counter. Int J Environ Res Public Health 19(24):16563. https://doi.org/10.3390/ijerph192416563

Strok M, Smodis B (2011) Levels of Po-210 and Pb-210 in fish and molluscs in Slovenia and the related dose assessment to the population. Chemosphere 82(7):970–976. https://doi.org/10.1016/j.chemosphere.2010.10.075

Strok M, Smodis B, Mazej D (2016) Bi-210-from interference to advantage in Pb-210 determination with liquid scintillation counter. Appl Radiat Isot 109:296–300. https://doi.org/10.1016/j.apradiso.2015.12.049

Sussa FV, Damatto SR, Alencar MM, Mazzilli BP, Silva PS (2013) Natural radioactivity determination in samples of Peperomia pellucida commonly used as a medicinal herb. J Environ Radioact 116:148–151. https://doi.org/10.1016/j.jenvrad.2012.09.012

Szarlowicz K (2019) Optimization of the radiochemical procedure of Po determination in small amounts of sediment samples. Int J Environ Sci Technol 16(10):5735–5740. https://doi.org/10.1007/s13762-018-2156-2

Teramage MT, Onda Y, Wakiyama Y, Kato H, Kanda T, Tamura K (2015) Atmospheric Pb-210 as a tracer for soil organic carbon transport in a coniferous forest. Environ Sci Process Impacts 17(1):110–119. https://doi.org/10.1039/c4em00402g

Uddin S, Aba A, Bebhehani M (2015) Baseline concentration of Po-210 and Pb-210 in Sargassum from the northern Gulf. Mar Pollut Bull 90(1–2):330–333. https://doi.org/10.1016/j.marpolbul.2014.09.029

Uddin S, Bebhehani M, Sajid S, Karam Q (2019) Concentration of 210 Po and 210 Pb in macroalgae from the northern Gulf. Mar Pollut Bull 145:474–479. https://doi.org/10.1016/j.marpolbul.2019.06.056

UNSCEAR (1993) Source and effects of ionizing radiation. New York

Vajda N, LaRosa J, Zeisler R, Danesi P, KisBenedek G (1997) A novel technique for the simultaneous determination of Pb-210 and Po-210 using a crown ether. J Environ Radioact 37(3):355–372. https://doi.org/10.1016/S0265-931x(95)00059-J

Vasile M, Loots H, Jacobs K, Verheyen L, Sneyers L, Verrezen F, Bruggeman M (2016) Determination of 210 Pb, 210 Po, 226 Ra, 228 Ra and uranium isotopes in drinking water in order to comply with the requirements of the EU Drinking Water Directive. Appl Radiat Isot 109:465–469. https://doi.org/10.1016/j.apradiso.2015.11.076

Vesterbacka P, Ikäheimonen TK (2005) Optimization of 210 Pb determination via spontaneous deposition of 210 Po on a silver disk. Anal Chim Acta 545(2):252–261. https://doi.org/10.1016/j.aca.2005.04.074

Villa-Alfageme M, Mas JL, Hurtado-Bermudez S, Masque P (2016) Rapid determination of (210)Pb and (210)Po in water and application to marine samples. Talanta 160:28–35. https://doi.org/10.1016/j.talanta.2016.06.051

Vranes M, Stojkovic I, Tot A, Todorovic N, Nikolov J, Gadzuric S (2021) Scintillating and wavelength shifting effect investigation of 3-methylpiridinium salicylate and its application in LSC measurements. Appl Radiat Isot 172:109697. https://doi.org/10.1016/j.apradiso.2021.109697

Wallova G, Kandler N, Wallner G (2012) Monitoring of radionuclides in soil and bone samples from Austria. J Environ Radioact 107:44–50. https://doi.org/10.1016/j.jenvrad.2011.12.007

Walsh S, Bond MJ, Guérin N, Blais JM, Rowan DJ (2023) A sensitive method to determine Po and Pb in environmental samples by alpha spectrometry using CuS micro-precipitation. Sci Rep 13(1):19754. https://doi.org/10.1038/s41598-023-46230-9

Wang S, Oakes KD, Bragg LM, Pawliszyn J, Dixon G, Servos MR (2011) Validation and use of in vivo solid phase micro-extraction (SPME) for the detection of emerging contaminants in fish. Chemosphere 85(9):1472–1480. https://doi.org/10.1016/j.chemosphere.2011.08.035

Wang Y, Ma Y, Dai X (2019) Direct analysis of 210 Pb in drinking water by liquid scintillation counting after sulfate precipitation. J Environ Radioact 201:19–24. https://doi.org/10.1016/j.jenvrad.2019.01.018

Yamamoto M, Sakaguchi A, Tomita J, Imanaka T, Shiraishi K (2009) Measurements of Po-210 and Pb-210 in total diet samples: estimate of dietary intakes of Po-210 and Pb-210 for Japanese. J Radioanal Nucl Chem 279(1):93–103. https://doi.org/10.1007/s10967-007-7198-8

Yang H, Battarbee RW, Turner SD, Rose NL, Derwent RG, Wu G, Yang R (2010) Historical reconstruction of mercury pollution across the Tibetan Plateau using lake sediments. Environ Sci Technol 44(8):2918–2924. https://doi.org/10.1021/es9030408

Yang HD, Appleby PG (2016) Use of lead-210 as a novel tracer for lead (Pb) sources in plants. Sci Rep 6:21707. https://doi.org/10.1038/srep21707

Yang WF, Huang YP, Chen M, Qiu YS, Li HB, Zhang L (2011) Carbon and nitrogen cycling in the Zhubi coral reef lagoon of the South China Sea as revealed by Po-210 and Pb-210. Mar Pollut Bull 62(5):905–911. https://doi.org/10.1016/j.marpolbul.2011.02.058

Younes A, Alliot C, Mokili B, Deniaud D, Montavon G, Champion J (2017) Solvent extraction of polonium(IV) with tributylphosphate (TBP). Solvent Extr Ion Exch 35(2):77–90. https://doi.org/10.1080/07366299.2017.1279917

Zhang Y, Xu B (2023) Fidelity of the 210 Pb dating method, a subaquatic sediment perspective. Sci Total Environ 871:161972. https://doi.org/10.1016/j.scitotenv.2023.161972

Zhong Q, Wang X, Wang Q, Zhang F, Li L, Wang Y, Du J (2020) 222 Rn, 210 Pb and 210 Po in coastal zone groundwater: activities, geochemical behaviors, consideration of seawater intrusion effect, and the potential radiation human-health risk. Appl Radiat Isot 166:109386. https://doi.org/10.1016/j.apradiso.2020.109386

Zhou Y, Gu X, Fan G, Ma Q, Guo Q, & Zou H (2004). Application of microwave digestion in analytical chemistry Metallurgical analysis (02), 30–36

Zhou Z, Ren H, Zhou L, Wang P, Lou X, Zou H, Cao Y (2022) Recent development on determination of low-level 90 Sr in environmental and biological samples: a review. Molecules 28(1):90. https://doi.org/10.3390/molecules28010090

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This work was supported by the Zhejiang Health Science and Technology Plan (No. 2021KY613, 2022RC120, 2022KY130, 2022KY132, 2023KY643), Project of South Zhejiang Institute of Radiation Medicine and Nuclear Technology (No. ZFY-2021-K-003, ZFY-2022-K-001, ZFY-2022-K-006), and Zhejiang Province Key Research and Development Project (No. 2024C03229).

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Department of Occupational Health and Radiation Protection, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, 310051, China

Hong Ren, Xinyu Gong, Lei Zhou, Peng Wang & Yiyao Cao

School of Public Health, Suzhou Medical College, Soochow University, Suzhou, 215123, China

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Hong Ren: writing—original draft, investigation, funding acquisition. Xinyu Gong: writing—original draft, investigation. Lei Zhou: investigation, formal analysis. Peng Wang: funding acquisition, investigation. Yiyao Cao: writing—review and editing, supervision, funding acquisition. All authors have read and agreed to the published version of the manuscript.

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Ren, H., Gong, X., Zhou, L. et al. Recent progresses in analytical method development for 210 Pb in environmental and biological samples. Environ Sci Pollut Res (2024). https://doi.org/10.1007/s11356-024-33272-3

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Received : 21 November 2023

Accepted : 06 April 2024

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DOI : https://doi.org/10.1007/s11356-024-33272-3

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