Polymeric imidazolium ionic liquids as valuable stationary phases in gas chromatography: Chemical synthesis and full characterization

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• 作者：Jaime Gonzá ; lez-Á ; lvarez^a ; Domingo Blanco-Gomis^a ; Pilar Arias-Abrodo^a ; Daniel Dí ; az-Llorente^a ; Nicolá ; s Rí ; os-Lombardí ; a^b ; Eduardo Busto^b ; Vicente Gotor-Ferná ; ndez^b ; Marí ; a Dolores Gutié ; rrez-Á ; lvarez^a ; ^{loly@uniovi.es}
• 关键词：Chemical synthesis ; Gas chromatography ; Polymeric ionic liquids ; Solvation parameter model ; Stationary phases
• 刊名：Analytica Chimica Acta
• 出版年：2012
• 期刊代码：2_00032670
• 类别：ch
• 出版时间：6 April, 2012
• 卷：721
• 期：Complete
• 页码：173-181
• 文件大小：575 K

摘要

Seven new functionalized polymerizable ionic liquids were chemically prepared, and later applied for the preparation of polymeric stationary phases in gas chromatography. These coated GC columns, which exhibited good thermal stabilities (240-300 掳C) and very high efficiencies (3120-4200 plates/m), have been characterized using the Abraham solvation parameter model. The chromatographic behavior of these polymeric IL columns has been deeply studied observing excellent selectivities in the separation of many organic substances such as alkanes, ketones, alcohols, amines or esters in mixtures of polar and non polar solvents or fragrances. Remarkably, the challenging separation of xylene isomers has been possible using a bis(trifluoromethylsulfonyl)amide based imidazolium IL coated column as a gas chromatography stationary phase.