| 新型微填充柱－毛细管柱二维色谱系统过程的动力学研究 |
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| 引用本文： | 张维冰,许国旺,史景江,杨黎,张玉奎,卢佩章. 新型微填充柱－毛细管柱二维色谱系统过程的动力学研究[J]. 色谱, 1996, 0(1) |
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| 作者姓名： | 张维冰 许国旺 史景江 杨黎 张玉奎 卢佩章 |
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| 作者单位： | 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，国家色谱研究分析中心 |
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| 摘 要： | 从色谱动力学角度对新型微填充柱－毛细管柱二维色谱系统过程中双柱条件与流出曲线及柱效之间的依赖关系加以系统研究。结果表明：由于双柱条件之间存在关联，双柱系统流出曲线特征与单柱系统存在一定的差异，流出曲线一阶矩和二、三阶中心矩以及双柱系统的柱效皆由预柱和主柱条件综合确定。
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| 关 键 词： | 二维气相色谱，微填充色谱柱，毛细管色谱柱，流出曲线，色谱动力学 |
Dynamics Study on the New Two-Dimensional Packed-Capillary Column System in Gas Chromatography |
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| Zhang Weibing,Xu Guowang,Shi Jingjiang,Yang Li,Zhang Yukui and Lu Peichang. Dynamics Study on the New Two-Dimensional Packed-Capillary Column System in Gas Chromatography[J]. Chinese journal of chromatography, 1996, 0(1) |
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| Authors: | Zhang Weibing Xu Guowang Shi Jingjiang Yang Li Zhang Yukui Lu Peichang |
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| Abstract: | Based on the dynamics, the dependence of the elution profile and efficiency on dual-column conditions in the new two-dimensional packed-capillary gas chromatography column system is studied in this paper. The mathematical expression of the first moment,the second and third central moments and the column efficiency in dual-column system has been concluded. Further studies indicate that two-dimensional chromatography system shows a series of special rules. Under some conditions, it can be achieved by changing dual-column conditions to change the peak elution orders of different compositions, it can also improve the peak form of special compound. Intercolumn exhaust is the bridge of precolumn and main-column,so it can influence the character of eluting curves. In two-dimensional system,column efficiency is mainly determined by solute's retention time and ratio of peak spreading in pre-column and main-column.In order to improve column efficiency,matching of pre-and main-column conditions is necessary. |
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| Keywords: | two-dimensional gas chromatography micro packed chromatographic column capillary chromatographic column elution curve chromatographic dynamics |
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