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题名: Effect of composition of mobile phase on electrophoresis osmotic flow in monolithic capillary columns with low electroosmotic flow
作者: Zhang, LY;  Zhang, WB;  Zhang, YK
关键词: in situ polymerization ;  monolithic capillary columns with low electroosmotic flow ;  organic solvent ;  electroosmotic flow
刊名: CHINESE JOURNAL OF ANALYTICAL CHEMISTRY
发表日期: 2004-05-01
卷: 32, 期:5, 页:569-572
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Analytical
研究领域[WOS]: Chemistry
英文摘要: Monolithic columns with low electroosmotic flow (EOF) in the electric field have been prepared by in situ polymerization of butyl methacrylate and ethylene dimethacrylate in the presence of suitable porogenic solvents. Parameters that might affect EOF, such as the species and proportion of organic solvent, have been studied systematically. In the pH range of 2.3 similar to 9.8, steady EOF could be obtatined with in 19.6 x 10(-10) m(2)V(-1) s(-1). When the proportion of organic solvent increased from 60% to 90%, the EOF increased from 6.6 x 10(-10) m(2)V(-1)s(-1) to 48. 9 x 10(-10) m(2)V(-1) s(-1). The results show that this kind of monolithic column could keep low EOF in the mode of CEC.
关键词[WOS]: POROUS POLYMER MONOLITHS ;  STATIONARY PHASES ;  SEPARATION MEDIA ;  LIQUID-CHROMATOGRAPHY ;  ELECTROCHROMATOGRAPHY ;  PERFORMANCE
语种: 英语
WOS记录号: WOS:000221785200004
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/138406
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Natl Chromatog Res & Anal Ctr, Dalian 116011, Peoples R China

Recommended Citation:
Zhang, LY,Zhang, WB,Zhang, YK. Effect of composition of mobile phase on electrophoresis osmotic flow in monolithic capillary columns with low electroosmotic flow[J]. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY,2004,32(5):569-572.
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