Theory of field-flow fractionation with the reversible adsorption on channel walls

V. P. Andreev; L. A. Stefanovich

doi:10.1007/BF02278642

Theory of field-flow fractionation with the reversible adsorption on channel walls

V. P. Andreev, L. A. Stefanovich

Psychiatry & Behavioral Sciences

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

Abstract

The particle-wall interactions in field-flow fractionating channels are described phenomenologically using the distribution coefficient, k. The time dependencies of the first and second dispersion coefficients are calculated and compared with the known solutions for the case of no adsorption. The results for the retention ratio and peak broadening are compared with the known experimental work. The model predicts the increase of peak broadening with the growth of particle-wall interactions that is consistent with the experimental data. The dependence of peak asymmetry on transverse Pe number and distribution coefficient is studied.

Original language	English (US)
Pages (from-to)	325-328
Number of pages	4
Journal	Chromatographia
Volume	37
Issue number	5-6
DOIs	https://doi.org/10.1007/BF02278642
State	Published - Sep 1 1993

Keywords

Field-flow fractionation
Mathematical model
Peak asymmetry
Peak broadening
Reversible adsorption

ASJC Scopus subject areas

Analytical Chemistry
Clinical Biochemistry

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AB - The particle-wall interactions in field-flow fractionating channels are described phenomenologically using the distribution coefficient, k. The time dependencies of the first and second dispersion coefficients are calculated and compared with the known solutions for the case of no adsorption. The results for the retention ratio and peak broadening are compared with the known experimental work. The model predicts the increase of peak broadening with the growth of particle-wall interactions that is consistent with the experimental data. The dependence of peak asymmetry on transverse Pe number and distribution coefficient is studied.

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KW - Peak asymmetry

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KW - Reversible adsorption

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Theory of field-flow fractionation with the reversible adsorption on channel walls

Abstract

Keywords

ASJC Scopus subject areas

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