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Tuning The Selectivity Of Ionic Liquid Stationary Phases For Enhanced Separation Of Nonpolar Analytes In Kerosene Using Multidimensional Gas Chromatography, Leandro W. Hantao, Ali Najafi, Cheng Zhang, Fabio Augusto, Jared L. Anderson
Tuning The Selectivity Of Ionic Liquid Stationary Phases For Enhanced Separation Of Nonpolar Analytes In Kerosene Using Multidimensional Gas Chromatography, Leandro W. Hantao, Ali Najafi, Cheng Zhang, Fabio Augusto, Jared L. Anderson
Jared L. Anderson
In this study, a series of ionic liquids (ILs) are evaluated as stationary phases in comprehensive two-dimensional gas chromatography (GC × GC) for the separation of aliphatic hydrocarbons from kerosene. IL-based stationary phases were carefully designed to evaluate the role of cavity formation/dispersive interaction on the chromatographic retention of nonpolar analytes by GC × GC. The maximum allowable operating temperature (MAOT) of the IL-based columns was compared to that of commercial IL-based columns. Evaluation of the solvation characteristics of GC columns guided the selection of the best performing IL-based stationary phases for the resolution of aliphatic hydrocarbons, namely, trihexyl(tetradecyl)phosphonium tetrachloroferrate …