Title: stir bar sorptive extraction
Long Title: IUPAC Gold Book - stir bar sorptive extraction
DOI: 10.1351/goldbook.10259
Status: current

Definition
Extraction of compounds from solution by a sorbent coated magnetic stir bar by rapid stirring (direct immersion) or by exposure to the headspace above a sample (headspace extraction).

Notes
1) Related devices for simultaneous stirring and sampling include rotating disc, stir rod, and stir membrane devices.
2) Rapid stirring accelerates mass transfer overcoming some of the limitations of diffusion controlled mass transfer in sessile solutions.

Related Terms
- headspace: https://goldbook.iupac.org//terms/view/10198
- headspace extraction: https://goldbook.iupac.org//terms/view/10267
- sorbent: https://goldbook.iupac.org//terms/view/10163

Source
- PAC, 2016, 88, 517. 'Glossary of terms used in extraction (IUPAC Recommendations 2016)' on page 545 (https://doi.org/10.1515/pac-2015-0903)

Other Outputs
- html: https://goldbook.iupac.org/terms/view/10259/html
- json: https://goldbook.iupac.org/terms/view/10259/json
- xml: https://goldbook.iupac.org/terms/view/10259/xml

Citation: Citation: 'stir bar sorptive extraction' 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.10259
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: 2026-04-21T03:11:53+00:00