将超声雾化与固相微萃取技术相结合,应用于提取白酒中的挥发性成分,采用GC/MS方法进行分离、鉴定。对影响该实验的参数条件进行了优化,结果表明65μmPDMS/DVB萃取纤维头富集出白酒中49种挥发性化合物。将超声雾化的实验结果与直接进样和传统浸入式SPME方法的实验结果作对比,证实了超声雾化法简便快速、无需加热,适用于白酒中挥发性成分的分析。 The combination of ultrasonic atomization and solid-phase microextraction was applied to extract the volatile components of white liquor, and was separated and identified by GC / MS. The parameters affecting the experiment were optimized. The results showed that 65 μm PVDF / DVB fiber heads enriched 49 volatile compounds in liquor. The experimental results of ultrasonic atomization are compared with those of direct injection and conventional immersion SPME. The results show that the ultrasonic atomization method is simple, rapid and without heating and is suitable for the analysis of volatile components in liquor.