https://doi.org/10.1351/goldbook.S06073
Amount-of-substance of a component divided by the mass of the system.
Notes:
- The term @[email protected] is recommended for clinical chemistry, ISO uses 'substance'.
- The term @[email protected] is recommended for clinical chemistry, ISO uses @[email protected]
- Use of the term level as a synonym for content is deprecated.
- In describing a quantity, @[email protected] must be clearly differentiated from @[email protected]