高等学校化学学报 ›› 2002, Vol. 23 ›› Issue (5): 822.

• 研究快报 • 上一篇    下一篇

基于二元手性选择剂协同作用的毛细管电泳拆分氨基酸对映体研究

卢小宁, 陈义   

  1. 中国科学院化学研究所分子科学中心, 北京 100080
  • 收稿日期:2002-01-15 出版日期:2002-05-24 发布日期:2002-05-24
  • 通讯作者: 陈义(1957出生),男,博士,研究员,博士生导师,从事生命中的分析化学研究.E-mail:chenyi@infoc3.icas.ac.cn E-mail:chenyi@infoc3.icas.ac.cn
  • 基金资助:

    国家自然科学基金(批准号:29825112);中国科学院基金资助.

Binary Chiral Selectors for Capillary Electrophoretic Enantioseparation of Amino Acids Derivatized with Fluoresceine Isothiocyanate

LU Xiao-Ning, CHEN Yi   

  1. Center for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China
  • Received:2002-01-15 Online:2002-05-24 Published:2002-05-24

关键词: 手性分离, 氨基酸, &beta, -环糊精, 牛磺胆酸钠, 毛细管电泳-激光诱导荧光检测

Abstract: A novel capillary electrophoretic approach has been developed for the enantioseparation of aminio acids derivatized with fluoresceine isothiocyanate(FITC).The detection was performed with laser-induced fluorescence.Binary chiral selectors of -cyclodextrin( -CD) and sodium taurocholate(STC) were used and it was found that the resolution and enantioselectivity are superior to either -CDor STCused alone.The optimum molar ratio of -CDto STCis 23 at a total concentration above 20 mmol/L.The best running .buffer tried is 80 mmol/Lborate at pH = 9.3.In this work, all of the 20 pairs of amino acid enantiomers tested were baseline resolved with a resolution greater than 1.9 of which 17 pairs gave a resolution above than 3.0.The highest resolution reached 14.58.

Key words: Chiral separation, Amino acids, β-CD, STC, CE-LIF

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