[GC-MS analysis of supercritical carbon dioxide extract from seeds of Zanthoxylum bungeanun Maxim]. 
The chemical components of supercritical carbon dioxide extracts from seeds of Zanthoxylum bungeanun Maxim.  were studied by GC-MS-DS.  Thirty-five compounds which account for 96.22% of the total area of the chromatographic peaks, were identified.  The results showed that fatty acids and esters occupied 90.83% of total chromatographic efflux of the extracts.  The main components of the extracts are oleic acid(38.91%), palmitic acid (29.45%), linoleic acid methyl ester(10.80%), linolenic acid methyl ester(8.64%), et al.