Cathy Aranda
Cathy Aranda

ACS In-Text Citation

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Published on: May 31, 2024

Last updated on: May 31, 2024

ACS In-Text Citation

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Citing sources in science papers can be a head-scratcher, especially when ACS style enters the scene. 

Students often find themselves lost in the sea of rules, unsure if they're doing it right. ACS in-text citations might feel like a mountain to climb.

But no worries! This ACS guide is here to simplify in-text citations just for you. 

We'll guide you step by step, making sure you understand the rules of in-text citations for your scientific writing assignments.

Let's tackle this challenge together!

ACS in-Text Citations

In the ACS (American Chemical Society) citation style, superscript numbers are commonly used for in-text citations along with the use of numbers in parentheses, e.g. (1) (2). 

Place the superscript numbers outside of punctuation marks (such as periods and commas) and after the punctuation marks.

The superscript numbers should appear after the cited information in the text.

Order of Citations

Arrange the superscript numbers in ascending order based on the order in which the sources are cited in the text.

Multiple Citations

If there are multiple citations in the same place, separate the superscript numbers with commas.

  • Example: Several studies have explored new materials for solar cells 1,3,5-7, and recent reviews provide comprehensive insights into this field 2,4,8.

Format for Superscript Numbers

Use Arabic numerals for the superscript numbers (1, 2, 3, etc.). Keep the superscript numbers smaller than the font size of the text.

Example:

The chemical reaction was studied extensively in recent years.9

In the bibliography or reference list, list the sources in numerical order, corresponding to the order of the superscript numbers in the text.

How to do ACS In-Text Citations for Different Types of Sources

ACS (American Chemical Society) in-text citations follow a numerical system, where each source is assigned a number that corresponds to the order of appearance in the text. 

Regardless of the type of source, these numbers are placed in superscript within the text. 

The corresponding number, along with the full citation details, is then listed in numerical order in the reference list at the end of the document.

Examples

  • Journal Articles 

Example: The study of chemical reactions has advanced significantly in recent years.1

In the bibliography:

Smith, John A.; Johnson, Mary B. Title of the Article. Journal Abbreviation Year, Volume, Page Range. DOI (if available).

  • Books

Example: The fundamental principles of organic chemistry are explored extensively in seminal works.2

In the bibliography:

Johnson, Mary B. Advanced Organic Chemistry. Publisher, City, Year.

  • Online Sources

Example: Recent findings suggest a significant impact on climate change.3

In the bibliography:

Smith, John A.; Johnson, Mary B. Title of the Article. Website Name. Year Published. URL

Pitfalls to Avoid While Citing In-Text ACS Sources

ACS in-text citations can be smooth when done correctly, but certain pitfalls can hinder the accuracy and effectiveness of your citations. 

Here are some common pitfalls to be aware of and avoid when using ACS style:

Pitfalls

Solutions

Inconsistent Formatting

Maintain a consistent citation style following ACS guidelines.

Misplaced Punctuation

Pay attention to proper punctuation placement as per ACS rules.

Unclear Citations

Double-check and ensure citations are clear and easily understandable.

Disregarding Changes in Multiple Citations

Regularly review and update citations to avoid inconsistencies.

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Cathy Aranda

WRITTEN BY

Cathy Aranda (Marketing, and Public Relations)

Cathy is a highly dedicated author who has been writing for the platform for over five years. With a Master's degree in Mass Communication, she is well-versed in various forms of writing such as articles, press releases, blog posts, and whitepapers. As an essay writing guide author at PerfectEssayWriter.ai, she has been helping students and professionals improve their writing skills by offering practical tips on research, citation, sentence structure, and style.

Cathy is a highly dedicated author who has been writing for the platform for over five years. With a Master's degree in Mass Communication, she is well-versed in various forms of writing such as articles, press releases, blog posts, and whitepapers. As an essay writing guide author at PerfectEssayWriter.ai, she has been helping students and professionals improve their writing skills by offering practical tips on research, citation, sentence structure, and style.

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