✦ LIBER ✦

Peak broadening in paper chromatography and related techniques : VII. The contribution of the macroscopic mobile phase velocity profile to peak broadening in paper and thin-layer chromatography

✍ Scribed by C.L. De Ligny; W. Van De Meent

Publisher: Elsevier Science
Year: 1970
Tongue: English
Weight: 547 KB
Volume: 53
Category: Article
ISSN: 1873-3778
DOI: 10.1016/s0021-9673(01)98503-6

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✦ Synopsis

The contribution of the macroscopic mobile phase velocity profile in a paper or thin-layer strip to longitudinal dispersion in chromatography was investigated. For this purpose the dependence of the plate height on the breadth of the paper or thinlayer strip, scanned by the densitometer, was determined using Whatman W2 paper and Camag D cellulose powder. As longitudinal dispersion depends on transversal (convective and diffusive) dispersion, the latter was determined for both chromatographic techniques.

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