Title: clearance
Long Title: IUPAC Gold Book - clearance
DOI: 10.1351/goldbook.CT01101
Status: current
Index: quantity

Definition
Product of the concentration of a component in an output system and the volume flow rate of that output system divided by the concentration of this component in the input system.

Note
The term mean volume rate is recommended for this quantity.

Related Terms
- clearance: https://goldbook.iupac.org//terms/view/CT06860
- mean volume rate: https://goldbook.iupac.org//terms/view/M03787
- volume flow rate: https://goldbook.iupac.org//terms/view/V06642

Source
- PAC, 1996, 68, 957. 'Glossary of terms in quantities and units in Clinical Chemistry (IUPAC-IFCC Recommendations 1996)' on page 966 (https://doi.org/10.1351/pac199668040957)

Other Outputs
- html: https://goldbook.iupac.org/terms/view/CT01101/html
- json: https://goldbook.iupac.org/terms/view/CT01101/json
- xml: https://goldbook.iupac.org/terms/view/CT01101/xml

Citation: Citation: 'clearance' 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.CT01101
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Accessed: 2026-04-18T22:59:24+00:00