Acta Chimica Sinica ›› 1996, Vol. 54 ›› Issue (6): 605-612. Previous Articles     Next Articles

Original Articles

气相色谱过程动力学研究-柱压降对色谱流出曲线的影响

张维冰;许国旺;杨黎;史景江;张玉奎;卢佩章   

  1. 齐齐哈尔轻工学院化工系;中国科学院大连化学物理研究所;中国科学院国家色谱分析研究中心
  • 出版日期:1996-06-15 发布日期:1996-06-15

Theoretical investigation of dynamic processes in GC-effect of column pressure on elution profile

ZHANG WEIBING;XU GUOWANG;YANG LI;SHI JINGJIANG;ZHANG YUKUI;LU PEIZHANG   

  • Online:1996-06-15 Published:1996-06-15

In this paper, the mass balance model relating to column pressure was set up, which based the original mass balance model, and taken into the relationship between the pressure change and carrier gas speed in the column. The first moment, the second and third central moments for the new model were derived by Laplace transform. The theoretical results showed that the column inlet pressure effects the peak profile and column efficiency. There is an approximate linear relationship among the column inlet pressure, the retention time of solvent, and the half peak width. These subsequences were proved experimentally.

Key words: GAS CHROMATOGRAPHY, MOMENTS, ELUTION CURVE

CLC Number: