The volume of mobile phase entering the column between the start of the
elution and the emergence of the peak maximum, or the corresponding time. In most of the
cases, this is equal to the total retention volume (time). There are, however, cases
when the
elution process does not start immediately at sample introduction. For example, in liquid
chromatography, sometimes the column is washed with a liquid after the application of the sample
to displace certain components which are of no interest and during this treatment
the sample does not move along the column. In gas
chromatography, there are also cases when a liquid sample is applied to the top of the column but
its
elution starts only after a given period. This term is useful in such cases.
Source:
PAC, 1993, 65, 819
(Nomenclature for chromatography (IUPAC Recommendations 1993))
on page 841
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.
,
