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[Wiley数据库][2012]Influence of ionic liquids as electrolyte additives on chiral separation of dansylat
发布时间:2016-03-20 11:32:13 阅读次数:
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题名
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[Wiley数据库][2012]Influence of ionic liquids as electrolyte additives on chiral separation of dansylated amino acids by using Zn(II) complex mediated chiral ligand exchange capillary electrophoresis
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参考引用方式
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Haizhi Zhang, Li Qi, Xiaoyu Mu, Xiaoping Zhou, Dan Li, Lanqun Mao. Journal of Separation Science, Volume 36, Issue 5, March 2013 , Pages 886–891
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研究机构
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中科院化学所
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所涉及离子液体
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研究领域
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手性配体交换毛细管电泳；丹磺酰氨基酸手性拆分；离子液体
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论文摘要
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In this work, investigation of the comparative influence of diverse ionic liquids as electrolyte additives on the chiral separation of dansylated amino acids by using Zn(II)-L-arginine complex mediated chiral ligand exchange capillary electrophoresis was conducted. It has been found that not only the varied substituted group number, but also the alkyl chain length of the substituted group on imidazole ring in the structure of ionic liquids show different influence on chiral separation of the analytes in the chiral ligand exchange capillary electrophoresis system, which could be understood by their direct influence on electroosmotic flow. Meanwhile, the variation of anion in the structure of ionic liquids displayed remarkably changed performance and the ionic liquids with Cl- showed the most obvious promoting effect on the chiral separation performance. Among the investigated seven ionic liquids, 1-butyl-3-methylimidazolium chloride was validated to be the proper electrolyte additive in the chiral ligand exchange capillary electrophoresis system. Further, it has been observed that 1-butyl-3-methylimidazolium chloride also has obviously promotive effect on the labeling performance. The results have demonstrated that the ionic liquids with different structures have important relation to their performance in chiral ligand exchange capillary electrophoresis and to their labeling efficiency in dansylation of the analytes.
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关键词
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Chiral ligand exchange capillary electrophoresis, Dansylated amino acids, Ionic liquids
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