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题名: Classification of structurally related compounds from Astragalus extract by correlation of the logk(w) and S
作者: Xiao, HB;  Liang, XM;  Lu, PC
关键词: column liquid chromatography ;  classification of structurally related compounds ;  correlation of the logk(w) and S ;  complex unknown sample ;  Astragalus extract
刊名: CHROMATOGRAPHIA
发表日期: 2000-02-01
卷: 51, 期:3-4, 页:212-220
收录类别: SCI
文章类型: Article
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
英文摘要: The linear relationship between logk(w) and S derived from molecular interactions and statistical thermodynamics was investigated by four series of different polar probe solutes. For each series of similar polar solutes, structurally related compounds with similar dipolarity/polarizability and hydrogen bonding energy, a linear relationship between logk(w) and S was obtained. The more similar the solutes, the greater were the regression coefficients obtained. For two series of solutes with different strong polar groups resulting in different dipolarity/polarizability and hydrogen bonding energy, two parallel lines were observed in the logk(w)-S plots. Each line represented one series of compounds and the distance between them indicated the difference in the dipolarity/polarizability and hydrogen bonding energy. Based on the parallel lines implying information on structurally related compounds in the logk(w)-S plot, a method of classification of structurally related compounds was put forward and the linear logk(w)-S correlation for unknown components in nonaqueous RP-HPLC analysis of Astragalus extract with isopropanol-methanol mobile phase was studied. Two nearly parallel lines were obtained in the logk(w)-S plot and two series of structurally related compounds were classified in this way.
关键词[WOS]: PERFORMANCE LIQUID-CHROMATOGRAPHY ;  RETENTION BEHAVIOR ;  MOLECULAR-STRUCTURE ;  ORGANIC MODIFIERS ;  GRADIENT ELUTION ;  MOBILE-PHASE ;  EQUATION ;  INDEX
语种: 英语
WOS记录号: WOS:000085855100014
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/138720
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, Peoples R China

Recommended Citation:
Xiao, HB,Liang, XM,Lu, PC. Classification of structurally related compounds from Astragalus extract by correlation of the logk(w) and S[J]. CHROMATOGRAPHIA,2000,51(3-4):212-220.
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