Rapid and simultaneous determination of imidazolium and pyridinium ionic liquid cations by ion-pair chromatography using a monolithic column

作     者：Xu Huang Hong Yu Ying Jie Dong 

作者机构：College of Chemistry and Chemical EngineeringHarbin Normal UniversityHarbin 150025China 

出 版 物：《Chinese Chemical Letters》 (中国化学快报（英文版）)

年 卷 期：2012年第23卷第7期

页      面：843-846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] 070302[理学-分析化学] 081502[工学-水力学及河流动力学] 0815[工学-水利工程] 0703[理学-化学] 

基　　金：supported by the Natural Science Foundation of Heilongjiang Province(No.B200909) the Program for Scientific and Technological Innovation Team Construction in Universities of Heilongjiang Province(No. 2011TD010) 

主　　题：Ionic liquids Ion-pair chromatography Monolithic column Ultraviolet detection 

摘      要：A method for rapid and simultaneous determination of imidazolium and pyridinium ionic liquid cations by ion-pair chromatography with ultraviolet detection was developed. Chromatographic separations were performed on a reversed-phase silica-based monolithic column using 1-heptanesulfonic acid sodium-acetonitrile as mobile phase. The effects of ion-pair reagent and acetonitrile concentration on retention of the cations were investigated. The retention times of the cations accord with carbon number rule. The method has been successfully applied to the determination of four ionic liquids synthesized by organic chemistry laboratory.