Liquid exclusion-adsorption chromatography: new technique for isocratic separation of nonionic surfactants I. Retention behaviour of fatty alcohol ethoxylates

被引：77

作者：

Trathnigg, B ^{[1
]}

Gorbunov, A

机构：

[1] Karl Franzens Univ Graz, Inst Chem, A-8010 Graz, Austria

[2] Inst Highly Pure Biopreparat, St Petersburg 197110, Russia

来源：

JOURNAL OF CHROMATOGRAPHY A | 2001年 / 910卷 / 02期

关键词：

liquid exclusion-adsorption chromatography; fatty alcohols ethoxylates; non-ionic surfactants;

D O I：

10.1016/S0021-9673(00)01215-2

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

A new technique of liquid chromatography is described, which allows a baseline separation of fatty alcohol ethoxylates with 15-20 ethylene oxide units under isocratic conditions. The new method is based on a combination of two different chromatographic modes for the individual structural units: size exclusion for the poly(oxyethylene) chain and adsorption interaction for the hydrophobic end fragments. A theory is provided for this mixed exclusion-adsorption mode of Liquid chromatography. Chromatographic data are found to be in a good agreement with this theory. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：207 / 216

页数：10

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