concentration factor [obsolete]

in solvent extraction
https://doi.org/10.1351/goldbook.C01226
Use of this term is not recommended.
See:
extraction factor
Source:
PAC, 1993, 65, 2373. (Nomenclature for liquid-liquid distribution (solvent extraction) (IUPAC Recommendations 1993)) on page 2381 [Terms] [Paper]