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

Abstract

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

CLC Number:

O657.8

TrendMD:

JIANG Tao, GUAN Ya-Feng  . On-line Coupling Technique of Packed Capillary High Performance Liquid Chromatography with Capillary Gas Chromatography[J]. Chem. J. Chinese Universities, 1998, 19(4): 520.

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

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