Separation of acidic and basic compounds in capillary electrochromatography with polymethacrylate-based monolithic columns
文献类型：期刊论文
| 作者 | Ping, GC; Zhang, LH; Zhang, L; Zhang, WB; Schmitt-Kopplin, P; Kettrup, A; Zhang, YK |
| 刊名 | journal of chromatography a
 |
| 出版日期 | 2004-05-07 |
| 卷号 | 1035期号:2页码:265-270 |
| 关键词 | electrochromatography monolithic columns stationary phases electrochromatography |
| 产权排序 | 1;1 |
| 英文摘要 | methacrylate-based monolithic columns with electroosmotic flow (eof) or very weak eof are prepared by in situ copolymerization in the presence of a porogen in fused-silica capillaries pretreated with a bifunctional reagent. satisfactory separations of acidic and basic compounds on the column with eof at either low or high ph are achieved, respectively. with sulfonic groups as dissociation functionalities, sufficient eof mobility still remains as high as 1.74 x 10(-4) cm(2) s(-1) v-1 at low ph. under this condition, seven acidic compounds are readily separated within 5.7 min. moreover, at high ph, the peak shape of basic compounds is satisfactory without addition of any masking amines into running mobile phase since the secondary interaction between the basic compounds and the monolithic stationary phase are minimized at high ph. reversed-phase mechanism for both acidic and basic compounds is observed under investigated separation conditions. in addition, possibilities of acidic and basic compound separations on a monolithic column with extremely low eof are discussed. (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] | phase liquid-chromatography ; rigid polymer monoliths ; reversed-phase ; stationary phases ; continuous beds ; packed-columns ; performance ; media ; nucleosides ; flow |
| 收录类别 | SCI |
| 原文出处 | true |
| 语种 | 英语 |
| WOS记录号 | WOS:000220783100012 |
| 公开日期 | 2010-11-30 |
| 源URL | [http://159.226.238.44/handle/321008/81647]  |
| 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 | 1.Chinese Acad Sci, Dalian Inst Chem Phys, Natl Chromatog Res & Anal Ctr, Dalian 116011, Peoples R China 2.GSF Natl Ctr Environm & Hlth, Inst Ecol Chem, D-85764 Neuherberg, Germany |
| 推荐引用方式 GB/T 7714 | Ping, GC,Zhang, LH,Zhang, L,et al. Separation of acidic and basic compounds in capillary electrochromatography with polymethacrylate-based monolithic columns[J]. journal of chromatography a,2004,1035(2):265-270. |
| APA | Ping, GC.,Zhang, LH.,Zhang, L.,Zhang, WB.,Schmitt-Kopplin, P.,...&Zhang, YK.(2004).Separation of acidic and basic compounds in capillary electrochromatography with polymethacrylate-based monolithic columns.journal of chromatography a,1035(2),265-270. |
| MLA | Ping, GC,et al."Separation of acidic and basic compounds in capillary electrochromatography with polymethacrylate-based monolithic columns".journal of chromatography a 1035.2(2004):265-270. |
入库方式： OAI收割
来源：大连化学物理研究所
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