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题名: Effects of organic modifiers on solute retention and electrokinetic migrations in micellar electrokinetic capillary chromatography
作者: Liu, Z;  Zou, HF;  Ye, ML;  Ni, JY;  Zhang, YK
关键词: micellar electrokinetic capillary chromatography ;  organic modifier ;  elutropic strength ;  electroosmotic mobility ;  electrophoretic mobility
刊名: ELECTROPHORESIS
发表日期: 1999-10-01
卷: 20, 期:14, 页:2898-2908
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Life Sciences & Biomedicine ;  Physical Sciences
类目[WOS]: Biochemical Research Methods ;  Chemistry, Analytical
研究领域[WOS]: Biochemistry & Molecular Biology ;  Chemistry
英文摘要: Influences of seven organic modifiers, including urea, methanol (MeOH), dioxane (DIO), tetrahydrofuran (THF), acetonitrile (ACN), 1-propanol (1-PrOH) and 2-propanol (2-PrOH), on the solute retention and the electrokinetic migrations in micellar electrokinetic capillary chromatography (MEKC) are investigated with sodium dodecyl sulfate (SDS) micelle as pseudostationary phase. It is observed that in the limited concentration ranges used in the MEKC systems the effect of organic modifier concentration on the retention can be described by the equation logk'=logk'(w)-SC for most binary aqueous-organic buffer, but deviations from this retention equation are observed at ACN and particularly THF as organic modifiers. With parameter S as a measure of the elutropic strength, the elutropic strength of the organic modifiers is found to follow a general order urea
关键词[WOS]: MOBILE PHASE ;  LIQUID-CHROMATOGRAPHY ;  ZONE ELECTROPHORESIS ;  STATIONARY PHASES ;  SEPARATIONS ;  SELECTIVITY ;  PERFORMANCE ;  PARAMETERS ;  SOLVENTS ;  ELUTION
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000085044200017
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/85609
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 R&A Ctr, Lab Chromatog, Dalian 116011, Peoples R China

Recommended Citation:
Liu, Z,Zou, HF,Ye, ML,et al. Effects of organic modifiers on solute retention and electrokinetic migrations in micellar electrokinetic capillary chromatography[J]. ELECTROPHORESIS,1999,20(14):2898-2908.
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