β-环糊精分子具有多个手性中心.玻碳电极是用碳粉做电导体,用硅油做粘合剂,将β-环糊精修饰石墨粉构成的手性碳糊电极.在β-环糊精和碳粉的混合比为0.25%,粘合剂为硅油,放置时间为70 s,pH值为7.8,最低浓度等最佳条件下,采用循环伏安和微分脉冲的电化学实验方法,实现了对具有手性的D、L-酪氨酸进行区分.这种方法简单,快速,灵敏,为手性分子的识别提供了新的思路.%β-CD molecule is a chiral molecule with several chiral centers. A carbon paste electrode was composed of graphite powder as electrode conductor, and silicone oil as the binder. Β-CD was modified on the surface of carbon paste electrode and a chiral electrode was formed. Under optimized experimental conditions of the mixing ratio (0.25% ) of graphite powder and β-CD, silicone oil as organic solvent, placing time(70 s), pH value(7.8), and lowest concentration, by cyclic voltammograms and differential pulse voltammetry, Ltyrosine was distinguished with D-tyrosine. The method is simple, fast and sensitive. It provides new ideas for identification of chiral molecules.
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