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题名: Physicochemical characterization of the Strychnos alkaloids by capillary zone electrophoresis
作者: Fu, SP;  Zhang, F;  Zhang, XZ;  Xu, Q;  Xiao, HB;  Liang, XM
通讯作者: 梁鑫淼
刊名: ANALYTICAL SCIENCES
发表日期: 2005-11-01
卷: 21, 期:11, 页:1303-1308
收录类别: SCI
文章类型: Article
部门归属: 18
项目归属: 1804,1803
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: A capillary zone electrophoresis (CZE) method has been developed for investigating the physicochemical characteristics of five Strychnos alkaloids in Strychnos nux-vomica L. Firstly, the dissociation constants of the five Strychnos alkaloids were determined, based on the relation between the effective mobility of the solutes and the buffer pH. The mathematical relationship was strictly deduced from the fundamental electrophoretic theory and the dissociation equilibrium. Secondly, an equation describing the relation between the migration time of alkaloids of similar structure and their molecular weights was developed and used to predict the migration order and to calculate the electrosomotic velocity. The results predicted by the theory agreed with those from experiments.
关键词[WOS]: DISSOCIATION-CONSTANTS ;  PK(A) VALUES ;  LIQUID-CHROMATOGRAPHY ;  IONIZATION-CONSTANTS ;  MIGRATION BEHAVIOR ;  ORGANIC-BASES ;  MOBILITIES ;  QUINOLONES ;  PREDICTION ;  SEPARATION
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000234120400009
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/93337
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, Dalian 116023, Peoples R China

Recommended Citation:
Fu, SP,Zhang, F,Zhang, XZ,et al. Physicochemical characterization of the Strychnos alkaloids by capillary zone electrophoresis[J]. ANALYTICAL SCIENCES,2005,21(11):1303-1308.
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