The volume occupied by the mobile phase between the particles in the packed section of a column. It is also called the interstitial volume or the void volume of the column. In liquid chromatography
, the interparticle volume is equal to the mobile-phase hold-up volume ()
in the ideal case, neglecting any extra-column volume. In gas chromatography
, the symbol
may be used for the interparticle volume of the column. In the ideal case, neglecting any extra-column volume,
is equal to the corrected gas hold-up volume ().
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. doi:10.1351/goldbook