Use of cationic cyclodextrin for enantioseparation by capillary electrophoresis

被引：25

作者：

Bunke, A ^{[1
]}

Jira, T ^{[1
]}

机构：

[1] Univ Greifswald, Dept Pharmaceut Med Chem, Inst Pharm, D-17487 Greifswald, Germany

来源：

JOURNAL OF CHROMATOGRAPHY A | 1998年 / 798卷 / 1-2期

关键词：

enantiomer separation; cyclodextrins;

D O I：

10.1016/S0021-9673(97)01197-7

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

The usability of 2-hydroxy-3-trimethylammoniopropyl-beta-cyclodextrin for chiral discrimination of various basic and acidic substances is described. The dependence of chiral separation on cyclodextrin (CD) concentration and pH value was investigated. Altering the pH value the migration order of the enantiomers of acidic analytes could be changed. Due to the quaternary ammonium structure of the CD molecule, a reversal of the electroosmotic flow (EOF) was observed. The direction of the migration of CD molecule was in opposite direction to the EOF because of its positive charge. The influence of CD concentration and pH on the EOF was determined. (C) 1998 Elsevier Science B.V.

引用

页码：275 / 280

页数：6

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