GC-MS Determination of Volatile Compounds in Aromatic Water from Mentha Haplocalyx Briq. with Ultrasound Assisted-Surfactant Enhanced Emulsification Microextraction

A method of GC-MS for the determination of volatile compounds in aromatic water from Mentha haplocalyx Briq. with low density solvent based ultrasound assisted-surfactant enhanced emulsification microextraction was proposed. The optimized conditions found were as follows: ① extractant: toluene; ② amount of 1 mg·L-1 Tween 80 solution: 30 μL; ③ ultrasound time: 1 min. The DB-5 quartz capillary column was used for GC separation and the full-scanning mode was adopted in MS determination. The proposed method was applied to the analysis of the Mentha haplocalyx Briq. samples. 20 compounds in aromatic water and 30 compounds in volatile oil from Mentha haplocalyx Briq. were identified. Most of the effective compounds existed in the aromatic water was the same as those in volatile oil.