Abstract: The objective of this study was to compare volatile components in Xanthii Herba and Xanthii Fructus from different origins using gas chromatography-mass spectrometry (GC-MS) coupled with multivariate statistical analysis.Peak matching,cutting and noise filtering were used in analyzing data based on GC-MS combined with PCA and PLS-DA.The results showed that the volatile components in Xanthii Herba and Xanthii Fructus samples were clearly distinguished.33 Differential chemical components were identified in Xanthii Herba and Xanthii Fructus.Among them,9 common differential components presented different changing laws.From the different volatile components of Xanthii Herba and Xanthii Fructus,it can provide the material basis for revealing the property and efficacy of Xanthii Herba and Xanthii Fructus.

Key words: Xanthii Herba, Xanthii Fructus, GC-MS, volatile components