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Self-enrichment effect of neutral solute in CEC
Zhang, WB; Zhu, J; Zhang, YK
关键词Cec Self-enrichment Injecting Time Relaxation Theory
刊名CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE
2001-09-01
22期:9页:1477-1480
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Chemistry, Multidisciplinary
研究领域[WOS]Chemistry
关键词[WOS]CAPILLARY ELECTROCHROMATOGRAPHY
英文摘要During the injection of neutral solute in CEC, the partition equilibrium of solute between mobile phase and stationary phase will lead to an inhomogeneous distribution along column axes and bring on a self-enrichment effect. Based on the relaxation theory, the transfer process of solute in column is dolt with by no-dimension method. The transfer equation forms an increasing series by degree. This equation is also solved with production function, and the second central moment of the profile is derived. Compared to the common injecting process and self-enrichment, the expression which describes the effect of injecting time and retention value on enrichment is theoretically held and experimentally investigated with two drugs mephenytoin and benzoin. The results show that the longer the injecting time and the larger the capacity factor of solute, the stronger the self-enrichment effect. Under the conditions of constant column efficiency, the self-enrichment effect can increase more than 10-fold detection sensitivity to the experimental solute.
语种英语
WOS记录号WOS:000172215200010
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被引频次:3[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/321008/138918
专题中国科学院大连化学物理研究所
作者单位Acad Sinica, 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,Zhang, YK. Self-enrichment effect of neutral solute in CEC[J]. CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE,2001,22(9):1477-1480.
APA Zhang, WB,Zhu, J,&Zhang, YK.(2001).Self-enrichment effect of neutral solute in CEC.CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE,22(9),1477-1480.
MLA Zhang, WB,et al."Self-enrichment effect of neutral solute in CEC".CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE 22.9(2001):1477-1480.
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