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学科主题: 物理化学
题名: A vacuum-evaporation interface for comprehensive capillary liquid chromatography of NPLC×RPLC
作者: Tian HZ(田宏哲) ;  Xu J(徐静) ;  Guan YF(关亚风)
会议名称: 大连国际色谱学术报告会及仪器展览会
会议日期: 2007-6-4
出版日期: 2007-06-04
会议地点: 中国
通讯作者: 关亚风
部门归属: 一室
主办者: 中国色谱学会
摘要: A vacuunm-evaporation loop-type valve interface for comprehensive capillary liquid chromatography of NPLC×RPLC was developed and evaluated.Two identical storage loops were used for storing the effluents alternatively from the first dimension.All the solvent in the loops was evaporated under vacuum conditions,leaving the analytes on the inner wall of the loop.The mobile phase of the second dimension dissolves the analyts in the loop and injects them onto the second column,allowing an on-line solvent exchange of a selected fraction from the first dimension to the second dimension.Anormal-phase liquid chromatographic(NPLC) column of a 600×0.25 mm I.D. filled with 5 μm CN phase was used as the first dimension,and a reversed-phase liquid chromatographic(RPLC)column of 50×0.53 mm I.D.packed with 5 μm C18 phase was used as the second dimension.We evaluated the interface by controlling the loop temperature either at 80℃ or at 25℃,and investigated the sample losses by using standard samples with different boiling points.The chromatographic resolution of analytes on the tow dimensions was maintaind at their optimal conditions by using the system.The performence of the comprehensive 2D-LC system was demonstrated by separation of a standard and real life environmental samples.
语种: 中文
内容类型: 会议论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/112836
Appears in Collections:中国科学院大连化学物理研究所_会议论文

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Recommended Citation:
Tian HZ,Xu J,Guan YF. A vacuum-evaporation interface for comprehensive capillary liquid chromatography of NPLC×RPLC[C]. 见:大连国际色谱学术报告会及仪器展览会. 中国. 2007-6-4.
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