碳数规律中∂A/∂(1/r)、∂B'/∂(1/r)值与固定液极性的关系  

RELATIONSHIP BETWEEN THE POLARITY OF STATIONARY LIQUID AND THE VALUES OF∂A/∂(1/r)、∂B'/∂(1/r) IN THE LAW OF CARBON NUMBER

作　　者：熊士荣[1] 杨军良[1] 

机构地区：[1]湖南师范大学化学化工学院,长沙410081

出　　处：《理化检验（化学分册）》2005年第1期32-34,36,共4页Physical Testing and Chemical Analysis(Part B:Chemical Analysis)

摘　　要：采用n-烷烃在不同极性的固定液中,在不同色谱柱温下试验的大量数据表明,碳数规律中A、B'值与柱温倒数(1/T)的关系中,(?)/(?)(1/T)值随固定液极性增加而增大;(?)B'/(?)(1/T)值随固定液极性增加而减小,即(?)A/(?)(1/T)值与Mertynolder常数成正比;(?)B'/(?)(1/T)值与Mertynolder常数成反比。Based on the data obtained from the experiments of gas-liquid chromatography of n-alkanes in stationary liquids of different polarity, and under different chromatographic column temperatures, it was observed that the values of (?)A/(?)(1/T) increase with the increase of polarity of the stationary liquids, and the values of (?)B'/ (?)(1/T) decrease with the increase of polarity of the stationary liquids. In other words, values of (?)A/(?)(1/T) are directly proportional to mertynolder constant, while the values of (?)B'/(?)(1/T) are inversely proportional to the same constant, which are opposite to the experimental results obtained by A. Patrykiejew in gas-solid chromatography. Explanation of this phenomenon was given, using the thermodynamic function of chromatography.

关 键 词：气液色谱 碳数规律 ∂A/∂(1/T)值 ∂B’/∂(1/T)值 固定液极性 

分 类 号：O657.7[理学—分析化学]