Yao Cong, Anderson Jared L
Department of Chemistry, University of Toledo, 2801 W. Bancroft Street, Toledo, OH 43606, USA.
J Chromatogr A. 2009 Mar 6;1216(10):1658-712. doi: 10.1016/j.chroma.2008.12.001. Epub 2008 Dec 7.
The interest of using ionic liquids (ILs) as stationary phases in gas chromatography (GC) has increased in recent years. This is largely due to the fact that new classes of ILs are being developed that are capable of satisfying many of the requirements of GC stationary phases. This review highlights the major requirements of GC stationary phases and describes how molten salts/ILs can be designed to largely meet these needs. The retention characteristics of organic solutes will be discussed for ammonium, pyridinium, and phosphonium-based molten salts followed by imidazolium, pyridinium, pyrollidinium, and phosphonium-based IL stationary phases. The versatility of ILs allows for the development of stationary phases based on dicationic ILs, polymeric ILs, and IL mixtures. To aid in choosing the appropriate IL stationary phase for a particular separation, the reader is guided through the different types of stationary phases available to identify those capable of providing the desired separation selectivity of organic solutes while allowing for flexibility in ranges of temperature used throughout the separation.
近年来，将离子液体（ILs）用作气相色谱（GC）固定相的关注度有所提高。这主要是因为正在开发新型离子液体，它们能够满足气相色谱固定相的许多要求。本综述强调了气相色谱固定相的主要要求，并描述了如何设计熔盐/离子液体以在很大程度上满足这些需求。将讨论铵基、吡啶鎓基和鏻基熔盐，以及咪唑鎓基、吡啶鎓基、吡咯烷鎓基和鏻基离子液体固定相的有机溶质保留特性。离子液体的多功能性使得基于双阳离子离子液体、聚合离子液体和离子液体混合物的固定相得以开发。为了帮助为特定分离选择合适的离子液体固定相，引导读者了解可用的不同类型固定相，以识别那些能够提供所需有机溶质分离选择性，同时在整个分离过程中所使用的温度范围内具有灵活性的固定相。
