Chiral Separation of Chlorpheniramine by Capillary Electrophoresis *L

Chiral Separation of Chlorpheniramine by Capillary Electrophoresis

Aim To study the chiral separation of chlorpheniramine(Chp) by using a mixture of β CD and glutamate β CD as the chiral additive in CE. Methods Mixture of β cyclodextrin and glutamate β cyclodextrin was used as a chiral selector to the separation of chlorpheniramine. The effects of the concentrations of β cyclodextrin and glutamate β cyclodextrin, the voltage and the pH of buffers on the separation of chlorpheniramine were studied. Results The chiral recognization of the mixed chiral selector was better than that of a single selector. At pH below 4, the pH of buffers did not affect the separation and the separation of chlorpheniramine had good reproducibility. Conclusion Using a mixture of β CD and Glu β CD as chiral selector is useful for the enantioseparation of Chp in CE.

目的研究谷氨酸βＣＤ和βＣＤ混合手性剂对扑尔敏对映体的分离．方法谷氨酸βＣＤ和βＣＤ混合，然后用作手性剂，重点考察βＣＤ和谷氨酸βＣＤ的浓度、操作电压、背景电解质溶液ｐＨ值对βＣＤ和谷氨酸βＣＤ混合体系分离扑尔敏对映体的影响．结果混合手性剂的手性识别能力大于单一手性剂的手性识别能力；在ｐＨ４以下，该混合体系对扑尔敏对映体的分离基本不受背景电解质溶液ｐＨ值的影响且具有较高的重现性．结论采用βＣＤ和谷氨酸βＣＤ混合体系作手性剂有利于扑尔敏的分离．