Ratio of the amount-of-substance of the component to the total amount-of-substance
in the system containing the component.
Notes:
-
The term substance fraction is recommended for clinical chemistry, IUPAC also uses
mole fraction and amount fraction.
-
For clinical chemistry the term component is recommended, ISO uses "substance".
-
For clinical chemistry the term system is recommended, ISO uses mixture.
Source:
PAC, 1996, 68, 957
(Glossary of terms in quantities and units in Clinical Chemistry (IUPAC-IFCC Recommendations
1996))
on page 994
Cite as:
IUPAC. Compendium of Chemical Terminology, 2nd ed. (the "Gold Book"). Compiled by
A. D. McNaught and A. Wilkinson. Blackwell Scientific Publications, Oxford (1997).
XML on-line corrected version: http://goldbook.iupac.org (2006-) created by M. Nic,
J. Jirat, B. Kosata; updates compiled by A. Jenkins. ISBN 0-9678550-9-8.
https://doi.org/10.1351/goldbook.
