Abstract: As a kind of excellent solvent, ionic liquids have received more attentions. Because of the special physical and chemical properties of ionic liquids, ionic liquids have been more widely used in chromatography. This paper summarizes the applications of ionic liquids in gas chromatography, liquid chromatography and capillary electrophoresis, which include ionic liquids used as stationary phase in gas chromatography, stationary phase and mobile phase additive in liquid chromatography and electrolyte additives in capillary electrophoresis. The determination of ionic liquids by chromatography has also been introduced.

Key words: application, capillary electrophoresis (CE), determination , gas chromatography (GC), liquid chromatography (LC), ionic liquids (ILs)