extract (verb)

To transfer a solute from a liquid phase to another immiscible or partially miscible liquid phase in contact with it. The term is also applied to the @D01806@ of material from a solid phase with a liquid in which it is not wholly soluble (i.e. leaching).
See also:
solvent extraction
Orange Book, 2nd ed., p. 95 [Terms] [Book]
PAC, 1993, 65, 2373. (Nomenclature for liquid-liquid distribution (solvent extraction) (IUPAC Recommendations 1993)) on page 2377 [Terms] [Paper]