Theoretical Investigation on the New Type Two-dimensional Packed-capillary Column GC System(Ⅱ)──Effect of Column Conditions on Column Efficiency

Chem. J. Chinese Universities ›› 1996, Vol. 17 ›› Issue (7): 1039.

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Theoretical Investigation on the New Type Two-dimensional Packed-capillary Column GC System(Ⅱ)──Effect of Column Conditions on Column Efficiency

ZHANG Wei-Bing¹, XU Guo-Wang², ZHANG Yu-Kui², SHI Jing-Jiang¹, LU Pei-Zhang²

1. Departmetn of Chemical Engineering, Qiqihar Light Industcy Institute, Qiqihar 161006;
2. Chromatographic R &D Centre of China, Dalian Institute of Chemical Physics, Chinese Academy of Sciences

Received:1995-06-07 Online:1996-07-24 Published:1996-07-24

Abstract

Abstract: The rules that the column conditions affect column effciency are investigated by chromatographic dynamics in this paper,It is further proved that the higher precolumn temperature and the faster precolumn carrier gas is beneficial to the column efficiency of the system of long capillary with small packed column,Considering the main column conditions and split ratio,it was also proved theoretically and experimentally that the proper main column temperature,carrier gas speed and the larger split ratio is profitable to improving the column efficiency in two-dimensional GCsystem.

Key words: GC, Two-dimenensional chromatographic system, Column condistions, Column efficiency

TrendMD:

ZHANG Wei-Bing, XU Guo-Wang, ZHANG Yu-Kui, SHI Jing-Jiang, LU Pei-Zhang. Theoretical Investigation on the New Type Two-dimensional Packed-capillary Column GC System(Ⅱ)──Effect of Column Conditions on Column Efficiency[J]. Chem. J. Chinese Universities, 1996, 17(7): 1039.

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Theoretical Investigation on the New Type Two-dimensional Packed-capillary Column GC System(Ⅱ)──Effect of Column Conditions on Column Efficiency

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