Monolithic columns with mixed modes of reversed-phase and anion-exchange stationary phase for capillary electrochromatography
文献类型：期刊论文
| 作者 | Fu, HJ; Xie, CH; Xiao, H; Dong, J; Hu, JW; Zou, HF |
| 刊名 | journal of chromatography a
 |
| 出版日期 | 2004-07-30 |
| 卷号 | 1044期号:1-2页码:237-244 |
| 关键词 | monolithic columns mixed-mode separations stationary phases electrochromatography electrochromatography anilines alkylbenzenes polynuclear aromatic hydrocarbons caffeine barbitals benzoic acids terephthalic acid |
| 英文摘要 | a capillary electrochromatography (cec) monolithic column with mixed modes of reversed-phase and anion-exchange stationary phases was prepared by in situ polymerization of 2-(methacryloxy)ethyltrimethylammonium methyl sulfate (meams) and ethylene dimethacrylate (edma) in a binary porogenic solvent consisting 1-propanol and 1,4-butanediol. the ammonium groups on the surface of the stationary phase generate an electroosmotic flow (eof) from cathode to anode, and serve as a strong anion-exchange stationary phase at the same time. the eof of the stationary phase can be determined by the amount of meams monomer in reaction mixtures during the polymerization. the monolithic stationary phases exhibited reversed-phase chromatographic behavior toward neutral solutes. for charged solutes, hydrophobic as well as electrostatic interaction/repulsion with the monoliths was observed. separations of aromatic compounds and basic compounds on the prepared column were performed under the mode of cec. peak tailing of basic compounds was avoided and the efficient separation of aromatic acids was achieved using neutral mobile phase due to the same direction of eof and electrophorestic mobility of negatively charged solutes. (c) 2004 elsevier b.v. all rights reserved. |
| 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 |
| 关键词[WOS] | rigid polymer monoliths ; liquid-chromatography ; separation media ; peptides ; proteins |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000222984300019 |
| 公开日期 | 2015-11-10 |
| 源URL | [http://159.226.238.44/handle/321008/139579]  |
| 专题 | 大连化学物理研究所_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 |
| 推荐引用方式 GB/T 7714 | Fu, HJ,Xie, CH,Xiao, H,et al. Monolithic columns with mixed modes of reversed-phase and anion-exchange stationary phase for capillary electrochromatography[J]. journal of chromatography a,2004,1044(1-2):237-244. |
| APA | Fu, HJ,Xie, CH,Xiao, H,Dong, J,Hu, JW,&Zou, HF.(2004).Monolithic columns with mixed modes of reversed-phase and anion-exchange stationary phase for capillary electrochromatography.journal of chromatography a,1044(1-2),237-244. |
| MLA | Fu, HJ,et al."Monolithic columns with mixed modes of reversed-phase and anion-exchange stationary phase for capillary electrochromatography".journal of chromatography a 1044.1-2(2004):237-244. |
入库方式： OAI收割
来源：大连化学物理研究所
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