第 35 卷第 6 期 | | Vol. 35 No. 6 | 2005 年 12 月 | Dec 2005 |
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所属栏目:其它
气相色谱中保留指数随温度变化规律的研究 |
彭红建; 胡薏冰(中南大学化学化工学院; 湖南长沙) |
摘 要:根据保留指数随温度变化的关系式得出保留指数随温度变化的三种规律,运用气相色谱实验获得了较好的验证;并从色谱热力学函数分析了保留指数随温度变化规律的主要原因是由于在色谱分离过程中不同的熵变和焓变所造成的。 |
关键词:保留指数; 色谱热力学函数 |
中图分类号:O657.7 文献标识码:A 文章编号:1009-9212(2005)06-0063-03 |
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Study on law of retain indices with temperature variation in gas chromatography |
PENG Hong-jian; HU Yi-bing(College of Chemistry and Chemical Engineering; Central South University; Changsha 10083; China) |
Abstract:In this paper,three laws of retain indices with temperature variation were deduced from the formula about retention index with temperature variation,and validated very well by gas chromatography experiment.The changing law of retention index with temperature from chromatographic thermal function resulted from the variation of the different entropy and enthalpy during the chromatographic separation. |
Key words:retention index; Chromatographic thermal function |
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基金项目:湖南省自然科学基金资助项目(No:04FJ2002)
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收稿日期:2005-07-11
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