Title: feed
Long Title: IUPAC Gold Book - feed
DOI: 10.1351/goldbook.10177
Status: current

Definition
Solution or gas containing analyte introduced into an extraction.

Note
If feed is used without qualification, the term may be taken to designate the initial liquid phase containing the main solute to be transferred or sample solution in a batch process.

Source
- PAC, 2016, 88, 517. 'Glossary of terms used in extraction (IUPAC Recommendations 2016)' on page 523 (https://doi.org/10.1515/pac-2015-0903)

Other Outputs
- html: https://goldbook.iupac.org/terms/view/10177/html
- json: https://goldbook.iupac.org/terms/view/10177/json
- xml: https://goldbook.iupac.org/terms/view/10177/xml

Citation: Citation: 'feed' 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.10177
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.
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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: 2026-04-21T00:50:29+00:00