超声辅助-表面活性剂增强乳化微萃取-气相色谱-质谱法测定薄荷芳香水中的挥发性成分

摘要

提出了基于低密度溶剂超声辅助-表面活性剂增强乳化微萃取-气相色谱-质谱法测定薄荷芳香水中的挥发性成分。优化的试验条件如下：①萃取剂为甲苯；②1 mg·L-1吐温80溶液的用量为30μL；③超声时间为1 min。在气相色谱分离中用 DB-5石英毛细管柱为固定相，在质谱分析中采用全扫描检测模式。方法用于薄荷样品的分析，薄荷芳香水中共鉴定出20种挥发性成分，薄荷挥发油中共鉴定出30种挥发性成分，其中所含的主要成分基本一致。%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.