Retention behaviour of carboxylic acid methyl esters in supercritical fluid chromatography

作     者：SHEN, Yu-Feng WANG, Qing-Hai ZHU, Dao-Qian ZHOU, Liang-Mo Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, Liaoning 116012, China 

作者机构：Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian Liaoning 116012 China 

出 版 物：《Chinese Journal of Chemistry》 (中国化学（英文版）)

年 卷 期：1994年第12卷第2期

页      面：129-137页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 070303[理学-有机化学] 0703[理学-化学] 

基　　金：Project supported by the National Natural Science Foundation of China 

主　　题：Supercritical fluid chromatography (SFC) retention behaviour carboxylic acid methyl esters retention equation of SFC. 

摘      要：The study on retention behavior in supercritical fluid chromatography (SFC) is necessary to understand the mechanism of the various interactions in SFC. The retention of SFC in carboxylic acid methyl ester/polymethylsiloxane/CO2 system was studied systematically and the retention behavior of this kind of compounds under various typical operation conditions was described using the method of an alternative unified theory of chromatographic retention. The results illustrated that expression: Ink.= a + b/T + cp + dp/T + ep2/T can be used to describe quantitatively the retention behavior of carboxylic acid methyl ester/polymethylsiloxane/CO2 system in the ranges of reduced density from 0.549 to 1.411. It was also found that the entropy of solute in stationary phase is dependent on the density of supercritical fluid (SF) under typical operating conditions of SFC.