Title: contamination Long Title: IUPAC Gold Book - contamination DOI: 10.1351/goldbook.C01295 Status: current Definition Carry-over from a preceding sample probe into a following specimen cup, which will influence not just one result, but all assays on that specimen, or with that reagent. Related Terms - Carry-over: https://goldbook.iupac.org//terms/view/C00866 - reagent: https://goldbook.iupac.org//terms/view/R05190 Source - PAC, 1991, 63, 301. 'Proposals for the description and measurement of carry-over effects in clinical chemistry (Recommendations 1991)' on page 302 (https://doi.org/10.1351/pac199163020301) Other Outputs - html: https://goldbook.iupac.org/terms/view/C01295/html - json: https://goldbook.iupac.org/terms/view/C01295/json - xml: https://goldbook.iupac.org/terms/view/C01295/xml Citation: Citation: 'contamination' 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.C01295 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: 2026-04-27T16:01:13+00:00