出口压减压下非极性薄涂气相色谱柱的特性及应用

摘　要：以甲基硅油0V-101、210为固定液，研究了出口压减压下薄涂气相色谱柱的特性，从柱压、柱温、保留值、柱效、柱的稳定性等方面进行了探讨。应用于烷烃及几种农药的分离，效果良好。

关键词：出口压，薄涂柱，气相色谱，柱效，减压

分类号：O65　文献标识码：A

Performance and Application of Decompression and Low Coated Non-polar Liquid Phases in Gas Chromatographic Column

Yuan Xiaoyan（Department of Physics and Chemistry,Chanssha University,Changsha 410003）　
Chen Yiwen（College of Chemistry and Chemical Engneering,Hunan Universisy,Changsha 410082）　

Abstract：In this paper,performance of decompression and low coated gas chromatographic column of non-polar liquid phases is described. Chromatographic parameters of a column packed with 0.5% OV-101 on glazing support (φ0.18～0.25mm) 302 was studied for C、C7、C8、C9 n-alkanes samples. The results showed that the column pressure 0.068 MPa was best,the column temperature for n-octane could be decreased to 52°C,column efficiency was four time as high as ordinary pressure detection.
Keywords：Outlet pressure,low coated column,gas chromatography,column efficiency,decompression

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收稿日期：2000年6月13日

修稿日期：2000年12月3日

出版日期：2001年5月20日