[Study of chemical constituents of the essential oil form Pericarpium Zanthoxyli by GC-MS].

The chemical components of the essential oil from Pericarpium Zanthoxyli collected from Jinan city of Shandong province and Hengshui city of Henan province were analyzed by GC-MS. 36 components from Pericarpium Zanthoxyli in Jinan city of Shandong province that composed of about 87% of the total essential oil were separated and identified. 20 components from Pericarpium Zanthoxyli in Hengshui city of Henan province that composed of about 74% of total essential oil were separated and identified.