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茶叶科学 ›› 2006, Vol. 26 ›› Issue (4): 280-284.doi: 10.13305/j.cnki.jts.2006.04.009

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配体交换色谱手性流动相法拆分和定量茶氨酸对映体

李银花, 刘仲华*, 黄建安   

  1. 湖南农业大学天然产物研究中心,湖南 长沙 410128
  • 收稿日期:2006-07-05 修回日期:2006-08-28 出版日期:2006-12-25 发布日期:2019-09-11
  • 通讯作者: * 刘仲华, E-mail:larkin-liu@163.com
  • 作者简介:李银花(1977- ),女,湖南岳阳人,硕士,从事色谱分析工作。
  • 基金资助:
    科技部十五攻关项目(2004BA542C)

Separation and Quantitation of Theanine Enantiomers on Ligand Exchange Chromatography with Chiral Mobile Phase

LI Yin-hua, LIU Zhong-hua*, HUANG Jian-an   

  1. Institute of Natural Products, Hunan Agricultural University, Changsha 410128, China
  • Received:2006-07-05 Revised:2006-08-28 Online:2006-12-25 Published:2019-09-11

摘要: 建立了配体交换色谱手性流动相法拆分茶氨酸对映体的方法。采用Polaris C18柱;流动相为L-脯氨酸:Cu2+(摩尔比)为2:1,Cu2+浓度为0.5βmmol/L,pH6.8,甲醇的加入体积比为2%;波长254βnm;流速0.9βml/min;柱温30℃。L-茶氨酸的进样量在0.09542βμg~4.241βμg范围内峰面积与进样量之间线性关系良好,回收率在97.45%~100.4%之间;D-茶氨酸的进样量在0.08486βμg~4.243βμg范围峰面积与进样量之间线性关系良好,回收率在97.07%~100.1%之间。该方法通用,准确。

关键词: 高效液相色谱, 茶氨酸对映体, 拆分, 手性流动相法

Abstract: Ligand exchange chromatography with chiral mobile phases was established for the separation of theanine enantiomers.The optimum condition was :Polaris C18 column, mobile phase: L-proline: Cu2+=2:1, the concentration of Cu2+ was 0.5βmmol/L, pH6.8, the volume of methanol is 2%, wavelength: 254βnm;flow rate:0.9βml/min, column temperature:30℃. There was a good linearity between peak areas and injection quantities of L-Theanine ranging from 0.09542βμg~4.241βμg and D-Theanine ranging from 0.08486βμg~4.243βμg. The recovery of L-Theanine range from 97.45%~100.4% and D-Theanine range from 97.07%~100.1%.

Key words: HPLC, theanin enantiomer, separation, chiral mobile phases

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