✦ LIBER ✦

Calculation of retention factors in capillary electrochromatography from chromatographic and electrophoretic data

✍ Scribed by Vissers, Johannes P. C. ;Claessens, Henk A. ;Coufal, Pavel

Publisher: John Wiley and Sons
Year: 1995
Tongue: English
Weight: 398 KB
Volume: 18
Category: Article
ISSN: 0935-6304
DOI: 10.1002/jhrc.1240180906

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✦ Synopsis

Abstract

Retention factors in capillary electrochromatography (CEC) were calculated by means of theoretically derived equations and experimentally determined parameters in microcolumn liquid chromatography and capillary zone electrophoresis. It was found that the retention factor of uncharged components in CEC was about 20% higher than was calculated. The derived equations do not take into account alteration of the nature of the stationary phase or distribution constant by the applied electric field. However, the influence of the electric field on the retention in CEC can be estimated. Individual field contributions could not be determined.

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## Calculation of retention factors for charged solutes in capillary electrochromatography An equation describing the capillary electrochromatographic (CEC) retention factor is derived using the fundamental chromatographic concept of retention factor. This retention equation couples both the chrom