Title of article :
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
Author/Authors :
Qi ، نويسنده , , Shengda and Cui، نويسنده , , Shuya and Chen، نويسنده , , Xingguo and Hu، نويسنده , , Zhide، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2004
Abstract :
The present study reported the ionic liquid (IL) used as running electrolyte in capillary zone electrophoresis (CZE) with β-cyclodextrin (β-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-methylimizolium tetrafluoroborate (1B-3MI-TFB) solution with 4.0 mM β-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.
Keywords :
Capillary zone electrophoresis , 1-Butyl-3-methylimizolium tetrafluoroborate , Ionic liquids , ?-Cyclodextrin , Anthraquinones
Journal title :
Journal of Chromatography A
Journal title :
Journal of Chromatography A