高等学校化学学报

高等学校化学学报 ›› 1998, Vol. 19 ›› Issue (4): 520.

• 论文 • 上一篇    下一篇

填充毛细管液相色谱-毛细管气相色谱在线联用技术

江涛, 关亚风   

  1. 中国科学院大连化学物理研究所, 大连, 116012
  • 收稿日期:1997-10-13 出版日期:1998-04-24 发布日期:1998-04-24
  • 通讯作者: 关亚风
  • 作者简介:江涛,女,27岁,博士研究生.

On-line Coupling Technique of Packed Capillary High Performance Liquid Chromatography with Capillary Gas Chromatography

JIANG Tao, GUAN Ya-Feng    

  1. Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116012
  • Received:1997-10-13 Online:1998-04-24 Published:1998-04-24

PDF (PC)

被引次数

49

摘要： 建立了一套填充毛细管液相色谱-毛细管气相色谱在线联用的二维色谱分离体系.联用接口由十通阀和多位阀构成,将经填充毛细管液相色谱分离后的样品各馏分在线准确切割和储存,并在线无损失输送至GC分析,从而实现了复杂样品的一次进样全组分的分离分析.本文对该体系的各部件及操作条件进行了详细的考察和优化,并以柴油和变压器油为例进行了分析,结果表明,该联用体系分离分析复杂样品效果良好.

关键词: 在线液相色谱－气相色谱联用, 填充毛细管液相色谱, 接口, 柴油, 变压器油

Abstract: An on-line coupling system of packed capillary high performance liquid chromatography(PC-HPLC) with capillary gas chromatography(CGC) has been developed. The interface consists of a 10-port valve and a multi-position valve, which cuts and stores fractions continuously from PC-HPLC, and transfers them into the GCcolumn separately without sample loss. An auxiliary solvent loop was used to wash the sample loop of the interface. The dead volume that cannot be washed is less than 0.1μL. The factors that affect the performance of the system were investigated in detail. The error of the reproducibility of the system is less than 1.5% relative standard deviation. The analysis of diesel fuel and transformer oil were demonstrated, which shows the strong separation power and application potential of this system for complex compounds.

Key words: On-line coupled HPLC/GC, PC-HPLC, Interface, Diesel fuel, Transformer oil

中图分类号: 

TrendMD: