高等学校化学学报

高等学校化学学报

• 研究论文 • 上一篇    下一篇

L-AlaC4NTf2手性离子液体作为新型气相色谱固定相的性能研究

李芙蓉, 宋卿, 赵丽, 袁黎明   

  1. 云南师范大学化学化工学院, 昆明 650092
  • 收稿日期:2008-10-22 修回日期:1900-01-01 出版日期:2009-02-10 发布日期:2009-02-10
  • 通讯作者: 袁黎明

Chromatographic Characteristics of L-AlaC4NTf2 Chiral Ionic Liquids as Stationary Phase in Capillary GC

LI Fu-Rong, SONG Qing, ZHAO Li, YUAN Li-Ming*   

  1. Department of Chemistry, Yunnan Normal University, Kunming 650092, China
  • Received:2008-10-22 Revised:1900-01-01 Online:2009-02-10 Published:2009-02-10
  • Contact: YUAN Li-Ming

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摘要： 合成了一种手性离子液体L-丙氨酸叔丁酯双三氟甲烷磺酰亚胺(L-AlaC4NTf2), 将其作为新型气相色谱固定相, 并与OV-1701按不同比例混合, 考察了它们的色谱性能. 研究结果表明, 该离子液体作为手性固定相的热稳定性高于175 ℃; 平均McReynolds常数为665; 在容量因子为1.02时, 理论塔板数可达每米1095块; 其对烷烃、醇类、酮类、芳香族化合物、位置异构体以及一些手性化合物具有良好的分离效果.

关键词: L-丙氨酸叔丁酯双三氟甲烷磺酰亚胺, 手性离子液体, 固定相, 手性分离, 气相色谱

Abstract: Chiral ionic liquid L-alanine tert butyl ester bis(trifluoromethane) sulfonimide(L-AlaC4NTf2) was synthesized and mixed with OV-1701 at different ratios, and used as new stationary phase in capillary GC. The results show that the thermal stability of ionic liquid capillary column can reach to 175 ℃, the average value of McReynolds constants is 665, and its column efficiency is 1095 plate/m when the retention factor is 1.02. Their separation selectivities are toward alkanes, alcohols, ketones, aromatic compounds, positional isomers and some chiral compounds.

Key words: L-Alanine tert butyl ester bis(trifluoromethane) sulfonimide, Chiral ionic liquid, Stationary phase, Chiral separation, GC

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