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Monolithic column with zwitterionic stationary phase for capillary electrochromatography
Fu, HJ; Xie, CH; Dong, J; Huang, XD; Zou, HF
刊名ANALYTICAL CHEMISTRY
2004-08-15
DOI10.1021/ac0496695
76期:16页:4866-4874
收录类别SCI
文章类型Article
项目归属1809
产权排名1;1
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Chemistry, Analytical
研究领域[WOS]Chemistry
关键词[WOS]PERFORMANCE LIQUID-CHROMATOGRAPHY ; RIGID POLYMER MONOLITHS ; ELECTROSTATIC ION CHROMATOGRAPHY ; ELECTROOSMOTIC FLOW ; PACKED CAPILLARIES ; POROUS PROPERTIES ; SEPARATION MEDIA ; PROTEINS ; EFFICIENCY ; PEPTIDES
英文摘要A capillary electrochromatography (CEC) monolithic column with zwitterionic stationary phases was prepared by in situ polymerization of butyl methacrylate, ethylene dimethacrylate, methacrylic acid, and 2-(dimethyl amino) ethyl methacrylate in the presence of porogens. The stationary phases have zwitterionic functional groups, that is, both tertiary amine and acrylic acid groups, so the ionization of those groups on the zwitterionic stationary phase was affected by the pH values of the mobile phase, and further affects the strength and direction of the electroosmotic flow (EOF). Separations of alkylbenzenes and polycylic aromatic hydrocarbons based on the hydrophobic mechanism were obtained. Separation of various types of polar compounds, including phenols, anilines, and peptides, on the prepared column were performed under CEC mode with anodic and cathodic EOF, and different separation selectivities of those polar analytes were observed on the monolithic capillary column by using mobile phases with different pH values.
语种英语
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WOS记录号WOS:000223290300032
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被引频次:52[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/321008/81993
专题中国科学院大连化学物理研究所
作者单位Chinese Acad Sci, Dalian Inst Chem Phys, Natl Chromatog R&A Ctr, Dalian 116011, Peoples R China
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GB/T 7714
Fu, HJ,Xie, CH,Dong, J,et al. Monolithic column with zwitterionic stationary phase for capillary electrochromatography[J]. ANALYTICAL CHEMISTRY,2004,76(16):4866-4874.
APA Fu, HJ,Xie, CH,Dong, J,Huang, XD,&Zou, HF.(2004).Monolithic column with zwitterionic stationary phase for capillary electrochromatography.ANALYTICAL CHEMISTRY,76(16),4866-4874.
MLA Fu, HJ,et al."Monolithic column with zwitterionic stationary phase for capillary electrochromatography".ANALYTICAL CHEMISTRY 76.16(2004):4866-4874.
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