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Selectivity in a liquid-solid chromatographic system

Selectivity in a liquid-solid chromatographic system Utilizing experimentally determined capacity ratios and “a priori” calculated activity coefficients of the solutes the selectivity of separation in a liquid-solid chromatographic system is studied. Both the experimentally determined selectivity factor ( α ) and the calculated selectivity factor in the mobile phase ( α m ) of a solute pair fit a quadratic function of the concentration of eluting solvent components. Comparing these factors it is shown that the selectivity in the stationary phase ( α s ) is fairly constant when the composition of the mobile phase is changed. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Chromatographia Springer Journals

Selectivity in a liquid-solid chromatographic system

Chromatographia , Volume 24 (1) – Dec 1, 1987

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References (15)

Publisher
Springer Journals
Copyright
Copyright © 1987 by Friedr. Vieweg & Sohn Verlagsgesellschaft mbH
Subject
Chemistry; Analytical Chemistry; Organic Chemistry; Pharmacy; Biochemistry, general; Plant Sciences; Measurement Science, Instrumentation
ISSN
0009-5893
eISSN
1612-1112
DOI
10.1007/BF02688588
Publisher site
See Article on Publisher Site

Abstract

Utilizing experimentally determined capacity ratios and “a priori” calculated activity coefficients of the solutes the selectivity of separation in a liquid-solid chromatographic system is studied. Both the experimentally determined selectivity factor ( α ) and the calculated selectivity factor in the mobile phase ( α m ) of a solute pair fit a quadratic function of the concentration of eluting solvent components. Comparing these factors it is shown that the selectivity in the stationary phase ( α s ) is fairly constant when the composition of the mobile phase is changed.

Journal

ChromatographiaSpringer Journals

Published: Dec 1, 1987

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