Rapid and sensitive determination of anthraquinones in Chinese herb using 1-butyl-3-methylimidazolium-based ionic liquid with β-cyclodextrin as modifier in capillary zone electrophoresis

被引：101

作者：

Qi, SD

Cui, SY

Chen, XG ^{[1
]}

Hu, Z

机构：

[1] Lanzhou Univ, Dept Chem, Lanzhou 730000, Peoples R China

[2] Lanzhou Univ, Natl Key Lab Appl Organ Chem, Lanzhou 730000, Peoples R China

来源：

JOURNAL OF CHROMATOGRAPHY A | 2004年 / 1059卷 / 1-2期

基金：

中国国家自然科学基金;

关键词：

capillary zone electrophoresis; ionic liquids; 1-butyl-3-methylimizolium tetrafluoroborate; beta-cyclodextrin; anthraquinones;

D O I：

10.1016/j.chroma.2004.09.090

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

The present study reported the ionic liquid (IL) used as running electrolyte in capillary zone electrophoresis (CZE) with beta-cyclodexttin (beta-CD) as modifier for the separation of anthraquinones extract of Chinese herb Paedicalyx attopevensis Pierre ex Pitard. The optimum running electrolyte was 60 mM 1-butyl-3-tnethylimizolium tetrafluoroborate (1B-3MI-TFB) solution with 4.0 mM beta-CD. The pH was 10.00 and the applied voltage was 20 kV with detection at 254 nm. The present method was compared with others and the effect of Joule heating was discussed as well. More significantly, this method is the development of the ionic liquids application to the capillary electrophoresis. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：191 / 198

页数：8

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