Analysis of Volatile Oils of Thymus Proximus Serg. from Xinjiang by Gas Chromatography-Mass Spectrometry

The volatile oil was extracted from Thymus Proximus Serg. by water distillation method．The content of volatile oil is 0.16％．The chemical components of volatile oil were separated and identified by gas chromatography-mass spectrometry (GC／MS). 69 compounds are identified from 73 constituents．The relative content of components were determined with peak area normalization method. The major constituents of volatile oil are thymol (27.99%), p-cymene(25.42%), γ-terpinene (17.95%), β-bisabolene(3.87%), carvacrol (2.5%), 4-carene(2.39%), pulegone(1.99%), endo-borneol(1.68%), β-myrcene(1.35%), caryophyllene (1.09%) and α-thujene(1.01%)。