mass distribution ratio

in chromatography

The fraction ( $1 − R$ ) of a component in the stationary phase divided by the fraction ( $R$ ) in the mobile phase:

$D m = amount of substance in the stationary phase amount of component in the mobile phase$

This term is recommended in preference to the term capacity factor frequently used in the chromatographic literature.

Source:

PAC, 1993, 65, 2373 (Nomenclature for liquid-liquid distribution (solvent extraction) (IUPAC Recommendations 1993)) on page 2384

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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.

Last update: 2014-02-24; version: 2.3.3.

DOI of this term: https://doi.org/10.1351/goldbook.M03718.

Original PDF version: http://www.iupac.org/goldbook/M03718.pdf. The PDF version is out of date and is provided for reference purposes only. For some entries, the PDF version may be unavailable.

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mass density gradient, $∇ ρ$ , $grad ρ$		mass distribution ratio, $k MEKC$ in micellar electrokinetic chromatography