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题名: Method for dead time determination in reversed-phase capillary electrochromatography with methacrylate-based stationary phases
作者: Ping, GC;  Zhang, WB;  Zhang, L;  Zhang, LH;  Shan, YC;  Zhang, YK;  Schmitt-Kopplin, P;  Kettrup, A
关键词: capillary electrochromatography ;  electroosmotic flow ;  polymer monolithic column ;  homologue series ;  dead time
刊名: CHROMATOGRAPHIA
发表日期: 2003-12-01
DOI: 10.1365/s10337-003-0105-8
卷: 58, 期:11-12, 页:803-806
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: A method for dead time determination in reversed-phase capillary electrochromatography (RP-CEC) with methacrylate-based monolithic stationary phases has been presented based on homologue series method. The dead times measured with homologue series method and thiourea, a commonly used electroosmotic flow (EOF) marker are compared under various conditions, such as the type and the concentration of organic modifier, ionic strength, and applied voltage. Results show that the former one is larger than the latter one. Under high ionic strength and low applied voltage, EOF velocity measured by thiourea is close to that determined by homologue series method.
关键词[WOS]: PERFORMANCE LIQUID-CHROMATOGRAPHY ;  RIGID POLYMER MONOLITHS ;  SEPARATION MEDIA ;  CONTINUOUS BEDS ;  VOID VOLUME ;  COLUMNS
语种: 英语
WOS记录号: WOS:000224674500020
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/138306
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 Chromatag Res & Anal Ctr, Dalian 116011, Peoples R China
2.GSF Natl Ctr Environm & Hlth, Inst Ecol Chem, Neuherberg, Germany
3.Tech Univ Munich, Inst Chem, Lehrstuhl Okol Chem & Umweltanalyt, Freising Weihenstephan, Germany

Recommended Citation:
Ping, GC,Zhang, WB,Zhang, L,et al. Method for dead time determination in reversed-phase capillary electrochromatography with methacrylate-based stationary phases[J]. CHROMATOGRAPHIA,2003,58(11-12):803-806.
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