In this work, three different methods: hydrodistillation (HD), hydrodistillation headspace solvent microextraction (HD-HSME) and microwave-assisted distillation headspace single-drop microextraction (MA-HSME) have been applied for the extraction of volatile components of the Stachys inflata Benth. The effect of experimental parameters such as solvent selection, microdrop volume, microwave power and sample amount on MA-HSME and HD-HSME were investigated, and the methods precision was studied. The obtained extracts were analyzed by GC-MS (identification and determination of components), and the experimental results were compared. Thirty-five volatile compounds present in Stachys inflata Benth were identified by using the proposed methods.
The experimental results showed that MA-HSME is a rapid, reliable, simple and solvent-free technique for the determination of volatile compounds in Stachys inflata Benth.
 

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