Rapid Analysis of Volatile Components in Baicao Oils by Ionic Liquid-headspace-GC-MS

OBJECTIVE:To establish the method for rapid analysis of volatile components in Baicao oils.METHODS:The volatile components of Baicao oils were determined by ionic liquid-headspance-GC-HS.The separation was performed on HP-5MS fused-silica capillary column(30 m×250 μm×0.25 μm)by temperature programming with ionic liquid 1-ethyl-3-methylimidazolium chloride([Emim][BF4 ])as matrix medium;the method was compared with the identification of traditional headspace solvent.RESULTS:The analytes were equilibrated with oven temperature 150 ℃ for 30 min,and 11 kinds of volatile components were identified using ionic liquid [Emin][BF4 ] as matrix medium.Using water as matrix medium,the analytes were equilibrated with oven temperature 80 ℃ for 30 min.Only six components were determined.CONCLUSIONS:Compared with water,ionic liquids as matrix medium solvent can determine more volatile components in Baicao oils at room temperature.The simple and fast method can be used for rapid analysis and identification of volatile components in Baicao oils,and provide a scientific basis further development for Baicao oils.