新型程序涂渍色谱柱程序效应的研究

Investigation of the Gradient Effect of a New-Kind of Gradient Loaded GC Column

新型程序涂渍色谱柱程序效应的研究许鸿生，洪辉（湘潭大学化学系，湘潭，４１１１０５）关键词新型程序柱，程序效应，气相色谱关于程序涂渍色谱柱的问题，国内外研究指数函数程序柱的较多［１～３］，色谱柱涂渍结构改变后，组分的保留行为及柱效能都发生较大变化．作者...

A new kind of GC column which possesses a tangential gradient in partition ratio was designed.The gradient effects of the tangential column on retention time were investigated.The theoretical equation of the gradient effect was derived. The practical result shows that the gradient effect of retention time on experimental value agrees with calculated value. Since liquid phase on the tangential column is distributed properly, a better gradient effect was obtained and the weakness of the exponential column was overcomed, the tangential column is an ideal column.