| 两种高热稳定性端羟基单阳离子型咪唑离子液体毛细管气相色谱固定相的性能评价 |
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| 引用本文： | 卢凯,刘伟,齐美玲,李言,傅若农.两种高热稳定性端羟基单阳离子型咪唑离子液体毛细管气相色谱固定相的性能评价[J].色谱,2010,28(8):731-736. |
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| 作者姓名： | 卢凯 刘伟 齐美玲 李言 傅若农 |
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| 作者单位： | 1. 北京理工大学理学院化学系, 北京 100081; 2. 北京市疾病预防控制中心营养与食品卫生所, 北京 100013 |
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| 基金项目： | 国家自然科学基金项目 |
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| 摘 要： | 采用静态法将合成的端羟基单阳离子咪唑离子液体1-(6-羟己基)-3-丁基咪唑二(三氟甲基)磺酰亚胺盐(HHBIM-NTf2)和1-(8-羟辛基)-3-丁基咪唑二(三氟甲基)磺酰亚胺盐(HOBIM-NTf2)作为固定相制备离子液体毛细管气相色谱柱。采用Grob试剂、混合醇样品和芳香族异构体混合物对固定相色谱选择性进行了考察,Grob试剂和混合醇组分产生的尖锐、对称的色谱峰形及异构体混合物组分达到基线分离的结果均表明端羟基离子液体固定相具有良好的色谱选择性。HHBIM-NTf2柱和HOBIM-NTf2柱经250 ℃老化8 h后对异构体混合物的分离能力没有明显下降,而HHBIM-NTf2柱经300 ℃老化后仍有理想的异构体选择性,表明端羟基离子液体固定相具有理想的热稳定性。本结果为进一步改善单阳离子型咪唑离子液体固定相的色谱性能提供了有效途径。
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| 关 键 词： | lang="EN-US" style="font-size: 10.5pt font-family: "Times New Roman" "serif" mso-bidi-font-size: 12.0pt mso-font-kerning: 1.0pt mso-ansi-language: EN-US mso-fareast-language: ZH-CN mso-bidi-language: AR-SA mso-fareast-font-family: capillary" target="_blank">宋体">capillary gas chromatography hydroxyl-terminated ionic liquids stationary phase |
| 收稿时间： | 2010-06-01 |
Evaluation of two hydroxyl-terminated monocationic ionic liquid stationary phases with high thermal stability for capillary gas chromatography |
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| LU Kai,LIU Wei,QI Meiling,LI Yan,FU Ruonong.Evaluation of two hydroxyl-terminated monocationic ionic liquid stationary phases with high thermal stability for capillary gas chromatography[J].Chinese Journal of Chromatography,2010,28(8):731-736. |
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| Authors: | LU Kai LIU Wei QI Meiling LI Yan FU Ruonong |
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| Affiliation: | LU Kai1,LIU Wei1,2,QI Meiling1*,LI Yan1,FU Ruonong1 ( 1. Department of Chemistry,School of Science,Beijing Institute of Technology,Beijing 100081,China,2. Institute of Nutrition & Food Hygiene,Beijing Centers for Diseases Control & Prevention,Beijing 100013,China) |
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| Abstract: | Novel hydroxyl-terminated ionic liquids of 1-( 6-hydroxyhexyl) -3-butyl imidazolium bis( trifluoromethyl) sulfonylimide ( HHBIM-NTf2) and 1-( 8-hydroxyoctyl) -3-butyl imidazolium bis( trifluoromethyl) sulfonylimide ( HOBIM-NTf2) were synthesized as stationary phases for capillary gas chromatography ( GC) . Besides,1-octyl-3-butyl imidazolium bis( trifluoromethyl) sulfonylimide ( OBIM-NTf2) was used as the reference. Selectivities and thermal stabilities of HHBIM-NTf2,HOBIM-NTf2 and OBIM-NTf2 were evaluated ... |
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| Keywords: | capillary gas chromatography hydroxyl-terminated ionic liquids stationary phase |
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