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高效毛细管电泳-电导检测拆分联萘酚对映体

Chiral Separation of Binaphthol Enantiomers by Capillary Electrophoresis Combined with Conductance Detection

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【作者】 郑一宁谢天尧莫金垣韦寿莲

【Author】 ZHENG Yi Ning, XIE Tian Yao, MO Jin Yuan * (Department of Chemistry,Zhongshan University,Guangzhou 510275) WEI Shou Lian (Department of Chemistry and Chemical Engineering, Guangxi University for Nationalities,Nanning)

【机构】 中山大学化学系广西民族学院化学化工系 广州510275广州510275南宁

【摘要】 以 Na OH和β-CD作为运行液 ,采用高效毛细管电泳 -电导检测对联萘酚进行了拆分研究 ,考察了影响分离和检测效果的实验参数 ,并对其拆分机理进行了讨论和验证 .结果表明 ,在选择的最佳实验条件下 ,联萘酚对映体在 1 5 min内得到基线分离 .经验证对拆分起主要作用的是分子间的氢键作用力

【Abstract】 The binaphthol enantiomers were resolved by capillary electrophoresis combined with conductance detection. The β cyclodextrin( β CD) was used as a chiral reagent in sodium hydroxide solution. The Pt wire with diameter of 80 μm was used as working electrode. The separation parameters, such as concentration of running buffer and β CD, applied voltage, have been studied in detail. Under the optimum conditions, baseline separation of the enantiomers could be completed in 15 minutes . The separation mechanism has been studied by using methylated β CD as a chiral reagent. It was found that the H bonding is an important factor determining the interaction between molecules.

【基金】 国家自然科学基金 ( 2 9675 0 33);广东省自然科学基金 ( 0 0 12 37)资助项目
  • 【文献出处】 应用化学 ,Chinese Journal of Applied Chemistry , 编辑部邮箱 ,2002年02期
  • 【分类号】O658.9
  • 【被引频次】8
  • 【下载频次】161
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