聚合咪唑离子液体作为气相色谱中的有价值固定相：化学合成与全性质表征。

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

机构信息

Department of Physical and Analytical Chemistry, University of Oviedo, Spain.

出版信息

Anal Chim Acta. 2012 Apr 6;721:173-81. doi: 10.1016/j.aca.2012.01.047. Epub 2012 Feb 10.

DOI:10.1016/j.aca.2012.01.047

Abstract

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°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.

摘要

七种新的功能化聚合离子液体被化学合成，并随后应用于气相色谱中聚合物固定相的制备。这些涂覆的 GC 柱具有良好的热稳定性（240-300°C）和非常高的效率（3120-4200 板/米），并使用 Abraham 溶剂化参数模型进行了表征。这些聚合 IL 柱的色谱行为进行了深入研究，在极性和非极性溶剂混合物或香料中，观察到对许多有机物质（如烷烃、酮、醇、胺或酯）的分离具有极好的选择性。值得注意的是，使用基于双（三氟甲基磺酰基）酰胺的咪唑鎓 IL 涂覆柱作为气相色谱固定相，实现了对二甲苯异构体的挑战性分离。