clearance, Δ V Δ t in spectrochemical analysis, in toxicology
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.
The term mean volume rate is recommended for this quantity.
PAC, 1996, 68, 957 (Glossary of terms in quantities and units in Clinical Chemistry (IUPAC-IFCC Recommendations 1996)) on page 966