This term may be used in place of liquid-liquid distribution when the emphasis is
on the analyte(s) being distributed (or extracted).
Note:
The distinction between the
distribution constant(
) and the
partition constant(
) or the concentration distribution ratio
(
)
is reaffirmed and it is recommended that the terms
partition constant,
partition coefficient and
extinction constant should not be used as synonyms for the (analytical)
distribution ratio,
. A distinction is drawn between the terms solvent and diluent, and the term
extractant is now restricted to the active substance in the solvent (i.e. the homogeneous '
organic phase' which comprises the
extractant, the diluent and/or the modifier) which is primarily responsible for the transfer
of solute from the '
aqueous' to the '
organic' phase.
Source:
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.
