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On-line enrichment of neutral solute in capillary electrochromatography
Zhang, WB; Zhu, J; You, JM; Zhang, B; Ping, GC; Zhang, YK
关键词Electrochromatography On-line Enrichment Neutral Solute
刊名CHINESE JOURNAL OF ANALYTICAL CHEMISTRY
2001-08-01
29期:8页:869-875
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Chemistry, Analytical
研究领域[WOS]Chemistry
关键词[WOS]CHROMATOGRAPHY
英文摘要On-line enrichment of neutral solute in capillary electrochromatography (GEC) can be achieved by varying the concentration of organic modifier in sample solution and running buffer, together with extending the injection time. On-line enrichment is mainly controlled by two processes: self-enrichment and transfer enrichment. Based on the method of relaxation theory, an expression, which described the relationship between enrichment factor and running condition, was theoretically derived. Due to this expression, higher enrichment factor can be obtained by extending injection time, and the effect of the injection time on column efficiency depended on the concentration of organic modifier. If there were large difference of concentration of organic modifier in sample solution and naming buffer, proper extending of injection time would have a few effect on column efficiency. The theoretical results were experimentally proved with two drags: benzoin and mephenytoin. The enrichment factor of more than 100 folds was obtained.
语种英语
WOS记录号WOS:000170735600001
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被引频次:2[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/138927
专题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 Res & Anal Ctr, Dalian 116011, Peoples R China
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GB/T 7714
Zhang, WB,Zhu, J,You, JM,et al. On-line enrichment of neutral solute in capillary electrochromatography[J]. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY,2001,29(8):869-875.
APA Zhang, WB,Zhu, J,You, JM,Zhang, B,Ping, GC,&Zhang, YK.(2001).On-line enrichment of neutral solute in capillary electrochromatography.CHINESE JOURNAL OF ANALYTICAL CHEMISTRY,29(8),869-875.
MLA Zhang, WB,et al."On-line enrichment of neutral solute in capillary electrochromatography".CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 29.8(2001):869-875.
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