Title: closed-loop extraction
Long Title: IUPAC Gold Book - closed-loop extraction
DOI: 10.1351/goldbook.10191
Status: current

Definition
Extraction by a fixed volume of gas continuously recycled through the sample and a sorbent trap by a pump in a closed-circuit arrangement.Typical apparatus for closed-loop stripping analysis.

Note
Closed-loop extraction was developed for trace analysis of volatile compounds (at mass concentrations of \(\pu{ng L-1}\)) in drinking water.

Related Term
- sorbent trap: https://goldbook.iupac.org//terms/view/10201

Source
- PAC, 2016, 88, 517. 'Glossary of terms used in extraction (IUPAC Recommendations 2016)' on page 527 (https://doi.org/10.1515/pac-2015-0903)

Other Outputs
- html: https://goldbook.iupac.org/terms/view/10191/html
- json: https://goldbook.iupac.org/terms/view/10191/json
- xml: https://goldbook.iupac.org/terms/view/10191/xml

Citation: Citation: 'closed-loop 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.10191
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Accessed: 2026-06-29T08:34:08+00:00