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题名: Vacuum-evaporation interface of comprehensive two-dimensional liquid chromatography and its application
作者: Tian Hong-Zhe1, 2;  Xu Jing2;  Guan Ya-Feng2
通讯作者: 关亚风
关键词: comperhensive two-dimensional liquid chromatography ;  normal phase liquid chromatography-reversed phae liquid chromatography (NPLC-APLC) ;  vacuum-evaporation interface ;  Cnidium monnieri(L.) Cuss
刊名: CHINESE JOURNAL OF ANALYTICAL CHEMISTRY
发表日期: 2008-06-01
卷: 36, 期:6, 页:860-864
收录类别: SCI
文章类型: Article
部门归属: 1
项目归属: 105
产权排名: 2;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 comprehensive two-dimensional liquid chromatographic system (NPLC-RPLC) was developed using a vacuum-evaporation interface (VEI). A normal-phase liquid chromatography (NPLC) with a CN microcolumn was used as the first dimension (1(st)-D), and a reversed-phase liquid chromatography (RPLC) with a C-18 monolithic column was used as the second dimension (2(nd)-D). A two-position, ten-port valve with two identical storage loops was used as the interface that enabled alternate sampling of the first column eluent onto the second column untill the analysis was finished. In one of the two positions, the eluent from the first column filled one of the loops and was evaporated at 25 degrees C under vacuum conditions, leaving the analytes stick on to the inner wall of the loop. When the valve was switched to the second position, the effluent from the first column flowed through the other loop, while mobile phase of the 2(nd)-D dissolved the analytes in the loop from the previous cycle and injected them onto the second column, allowing on-line solvent exchange of the fractions from the 1(st)-D to the 2(nd)-D. The utility of the comprehensive 2DLC system was demonstrated in the analysis of standard samples and traditional Chinese medicine Cnidium monnieri (L.) Cuss extract.
关键词[WOS]: SEPARATIONS
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000257877300030
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/100317
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.Shenyang Agr Univ, Analyt Ctr, Shenyang 110161, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Instrumentat & Analyt Chem, Dalian 116023, Peoples R China

Recommended Citation:
Tian Hong-Zhe,Xu Jing,Guan Ya-Feng. Vacuum-evaporation interface of comprehensive two-dimensional liquid chromatography and its application[J]. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY,2008,36(6):860-864.
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