高等学校化学学报 ›› 1996, Vol. 17 ›› Issue (7): 1039.

• 论文 • 上一篇    下一篇

新型微填充柱-毛细管柱二维色谱系统的理论研究(Ⅱ)──双柱条件对柱效的影响

张维冰1, 许国旺2, 张玉奎2, 史景江1, 卢佩章2   

  1. 1. 齐齐哈尔轻工学院化工系, 齐齐哈尔 161006;
    2. 中国科学院大连化学物理研究所, 国家色谱研究分析中心
  • 收稿日期:1995-06-07 出版日期:1996-07-24 发布日期:1996-07-24
  • 通讯作者: 张维冰,男,31岁,硕士,副教授.
  • 作者简介:张维冰,男,31岁,硕士,副教授.

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. 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

摘要: 从色谱动力学角度探讨了改变微填充柱-毛细管柱二维色谱系统中双柱条件对柱效的影响规律,进一步证实了短填充柱接长毛细管柱及高预柱柱温、快预柱载气线速有利于提高双柱系统柱效的结论;同时,通过对主柱柱温、载气线速及柱间分流比的讨论,从理论和实验上也证实了相对较低的主柱柱温、较慢主柱线速以及稍大的分流比有益于柱效利用率的提高。

关键词: 气相色谱, 二维色谱系统, 双柱条件, 柱效

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

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