Objective: To analysis of the volatile compounds in Scutellaria barbata using three types of fibers including PA

PDMS and PDMS-DVB. Method: A headspace solid-phase microextraction (HS-SPME) method followed by gas chromatography-mass spectrometry (GC-MS) is described for the analysis of volatile compounds in S. barbata using three types of fibers. The volatile compounds of S. barbata were extracted by PA

PDMS and PDMS-DVB fiber individually. The relative content of each component was calculated by the normalization method. Result: 90 volatile compounds were found in S. barbata.

using three types of fibers. There were 41 volatile compounds (83.61%) identified in PA extract;40 volatile compounds (94.63%) identified in PDMS extract;53 volatile compounds (89.10%) identified in PDMS-DVB extract. Among them

13 compounds were common peaksin three types of fibers. Conclusion: The results made by the three types of fibers are quite different. more alkanes and ketones can be identified for PA

more acids and ketones can be identified for PDMS

more naphthalenes

alkanes

olefinsand ketones can be identified for PDMS-DVB.