Title: immunochemical specificity Long Title: IUPAC Gold Book - immunochemical specificity DOI: 10.1351/goldbook.09672 Status: current Definition The extent to which the immunoassay responds only to (all subsets of) a specific analyte and not to other substances of similar structure that are present in the sample. Source - PAC, 2018, 90, 1121. 'Terminology of bioanalytical methods (IUPAC Recommendations 2018)' on page 1139 (https://doi.org/10.1515/pac-2016-1120) Other Outputs - html: https://goldbook.iupac.org/terms/view/09672/html - json: https://goldbook.iupac.org/terms/view/09672/json - xml: https://goldbook.iupac.org/terms/view/09672/xml Citation: Citation: 'immunochemical specificity' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. 10.1351/goldbook.09672 License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/) for individual terms. Collection: If you are interested in licensing the Gold Book for commercial use, please contact the IUPAC Executive Director at executivedirector@iupac.org . Disclaimer: The International Union of Pure and Applied Chemistry (IUPAC) is continuously reviewing and, where needed, updating terms in the Compendium of Chemical Terminology (the IUPAC Gold Book). Users of these terms are encouraged to include the version of a term with its use and to check regularly for updates to term definitions that you are using. Accessed: 2026-04-18T03:49:38+00:00