1. (in solvent extration) The process of selectively removing contaminating solutes (impurities) from an extract that contains these as well as the main extractable solute by treatment with a new immiscible liquid phase. The term @[email protected] has a different meaning and should not be used in this sense although this usage has been customary in certain industries.
    See also:
    crowding, stripping (in solvent extraction)
    PAC, 1993, 65, 2373. (Nomenclature for liquid-liquid distribution (solvent extraction) (IUPAC Recommendations 1993)) on page 2388 [Terms] [Paper]
  2. (in atmospheric chemistry) A process used in gas sampling or gas cleaning in which components in the gas stream are removed by contact with a liquid surface or a wetted packing, on spray drops, droplets, or in a bubbler, etc.
    PAC, 1990, 62, 2167. (Glossary of atmospheric chemistry terms (Recommendations 1990)) on page 2213 [Terms] [Paper]