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Separation of basic and acidic compounds by capillary electrochromatography using monolithic silica capillary columns with zwitterionic stationary phase
Hu, Jiwei; Xie, Chuanhui; Tian, Ruijun; He, Zhike; Zou, Hanfa; He ZK(何志柯); Zou HF(邹汉法); He ZK(何志柯); Zou HF(邹汉法)
关键词Basic Compounds Capillary Electrochromatography Electroosmotic Flow Monolithic Silica Capillary Column Zwitterionic Stationary Phase
刊名JOURNAL OF SEPARATION SCIENCE
2007-04-01
ISSN1615-9306
DOI10.1002/jssc.200600173
30期:6页:891-899
收录类别SCI
文章类型Article
部门归属18
项目归属1809
产权排名2;1
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Chemistry, Analytical
研究领域[WOS]Chemistry
关键词[WOS]REVERSED-PHASE ; CHROMATOGRAPHIC CHARACTERIZATION ; LIQUID-CHROMATOGRAPHY ; ELECTROOSMOTIC FLOW ; OCTADECYL MOIETIES ; POLYMER MONOLITHS ; ION-EXCHANGERS ; PEPTIDES ; PROTEINS ; MEDIA
英文摘要A novel monolithic silica column with zwitterionic stationary phase was prepared by in-situ covalent attachment of phenylalanine to a 3-glycidoxypropyltriethoxysilane-modified silica monolith. Due to the zwitterionic nature of the resulting stationary phase, the density and sign of the net surface charge, and accordingly the direction and magnitude of electroosmotic flow in this column during capillary electrochromatography could be manipulated by adjusting the pH values of the mobile phase. CEC separations of various acidic and basic compounds were performed on the prepared column in anodic and weakly cathodic EOF modes, respectively. The peak tailing of basic compounds in CEC on a silica column could be alleviated at optimized buffer compositions. Besides the electrophoretic mechanism and weak hydrophobic interaction, weak cation- and anion-exchange interactions are also involved in the separations of acids and bases, respectively, on the zwitterionic column.
语种英语
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WOS记录号WOS:000246348000014
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被引频次:22[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/98547
专题中国科学院大连化学物理研究所
通讯作者He ZK(何志柯); Zou HF(邹汉法); He ZK(何志柯); Zou HF(邹汉法)
作者单位1.Wuhan Univ, Coll Chem & Mol Sci, Wuhan 430072, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Natl Chromatog R&D Ctr, Dalian, Peoples R China
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GB/T 7714
Hu, Jiwei,Xie, Chuanhui,Tian, Ruijun,et al. Separation of basic and acidic compounds by capillary electrochromatography using monolithic silica capillary columns with zwitterionic stationary phase[J]. JOURNAL OF SEPARATION SCIENCE,2007,30(6):891-899.
APA Hu, Jiwei.,Xie, Chuanhui.,Tian, Ruijun.,He, Zhike.,Zou, Hanfa.,...&邹汉法.(2007).Separation of basic and acidic compounds by capillary electrochromatography using monolithic silica capillary columns with zwitterionic stationary phase.JOURNAL OF SEPARATION SCIENCE,30(6),891-899.
MLA Hu, Jiwei,et al."Separation of basic and acidic compounds by capillary electrochromatography using monolithic silica capillary columns with zwitterionic stationary phase".JOURNAL OF SEPARATION SCIENCE 30.6(2007):891-899.
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