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题名: Preparation and characterization of monolithic columns for capillary electrochromatography with weak electroosmotic flow
作者: Zhang, LY;  Ping, GC;  Zhang, LH;  Zhang, WB;  Zhang, YK
关键词: monolithic polymer ;  electroosmotic flow ;  capillary electrochromatography ;  porogenic solvents ;  acidic compounds
刊名: JOURNAL OF SEPARATION SCIENCE
发表日期: 2003-03-01
卷: 26, 期:3-4, 页:331-336
收录类别: SCI
文章类型: Article
部门归属: 1810
项目归属: 1810
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
英文摘要: Monolithic columns of capillary electrochromatography (CEC) with weak electroosmotic flow (EOF) have been prepared by in situ polymerization of butyl methacrylate and ethylene dimethacrylate, without any charged groups in the reaction mixture. The reproducibility of such columns has been proved good no matter whether they are prepared in the same batch or in different batches. In the case of BMA-EDMA monoliths, besides the traditional ternary mixture - 1-propanol, 1,4-butanediol, and water, binary porogenic solvents with only alcohols have also been adopted. Compared with ternary porogenic solvents, the design with binary ones allows for fine control of the pore diameter and the formation of the specific surface of the monolithic polymers. The composition of porogenic reagents has also been shown to have an effect on EOF in the column systems. In addition, the Joule heat effect in such columns has been studied by varying the inner diameter of columns. Through the separation of acidic compounds, monolithic columns with low EOF have shown potential in the analysis of charged samples.
关键词[WOS]: PERFORMANCE LIQUID-CHROMATOGRAPHY ;  RIGID POLYMER MONOLITHS ;  SEPARATION MEDIA ;  STATIONARY PHASES ;  CATIONIC SURFACTANTS ;  ANION-EXCHANGE ;  PACKING ;  RODS
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000181950200017
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/82779
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,Ping, GC,Zhang, LH,et al. Preparation and characterization of monolithic columns for capillary electrochromatography with weak electroosmotic flow[J]. JOURNAL OF SEPARATION SCIENCE,2003,26(3-4):331-336.
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