Study on poly methods of imidazolium ionic liquid stationary phase in capillary gas chromatography

Abstract

1-allyl-3-methylimidazolium ionic liquids were synthesized and polymerized respectively in-column or out-column as stationary phases in capillary gas chromatography. The influences of different polymerized precedure were studied. The results indicated that 1-allyl-3-methylimidazolium hexafluorophosephate ionic liquids possessed good column coating property and a chromatographic separation ability after polymerized either in-column or out-column. While the column by polymerized outside had better column efficiency than that in column. The Grobs mixture, alcohols, alkanes and aromatic position isomers, such as xylene, nitrotoluene, dichlorobenzene and cresol were separated well. This polymerized ionic liquid gave potential to separate some complex compounds including alcohol, amine, ester etc.