catalytic activity concentration, \(b\)

https://doi.org/10.1351/goldbook.C00882
Catalytic activity of the component divided by the volume of the system.
Notes:
  1. In clinical chemistry @L03594@ is recommended as unit for the volume.
  2. In clinical chemistry the component is usually an enzyme.
  3. The term @C00886@ is accepted for use in clinical chemistry.
  4. Use of the term level as a synonym for concentration is deprecated.
  5. In describing a quantity, @C01222@ must be clearly differentiated from @C01296@.
Source:
PAC, 1996, 68, 957. 'Glossary of terms in quantities and units in Clinical Chemistry (IUPAC-IFCC Recommendations 1996)' on page 964 (https://doi.org/10.1351/pac199668040957)