Inverse size-exclusion chromatography for distributed pore and solute sizes

被引：19
|
作者：
Goto, M
McCoy, BJ
机构：
[1] Kumamoto Univ, Dept Appl Chem & Biochem, Kumamoto 8608555, Japan
[2] Univ Calif Davis, Dept Chem Engn & Mat Sci, Davis, CA 95616 USA
来源：
CHEMICAL ENGINEERING SCIENCE | 2000年 / 55卷 / 04期
关键词：
inverse size-exclusion chromatography; pore-size distribution; polydisperse solute; continuous mixture; mass transfer;
D O I：
10.1016/S0009-2509(99)00352-8
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
The pore-size distribution (PSD) of a liquid-saturated porous medium can be determined by inverse size-exclusion chromatography (ISEC) under suitable conditions. To quantify the limitations of longitudinal dispersion, intraparticle diffusion, and adsorption, we present a mathematical model for chromatographic procedures with polydisperse solutes. Results are applicable to either inverse or ordinary SEC. The conventional ISEC procedure with monodisperse polymer standards is a special case of the general development. Chromatographic responses for polydisperse solutes permit determination of the pore-size distribution by a deconvolution procedure if adsorption is negligible. (C) 1999 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：723 / 732
页数：10
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