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Pyrolytic Analysis of Huai Shanyao (Dioscorea opposita Thunb) by Capillary Gas Chromatography/Mass Spectroscopy

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ã€Authorã€‘ LI Ming-jing1,2,WANG Yong1,ZHAO Dong-bao1,2,LIU Xiu-hua1,2,WANG Wen-ling3(1.College of Chemistry and Chemical Engineering,Henan University,Kaifeng 475001,Henan,China;2.Key lab of natural Drug and Immune Engineering,Henan University,Kaifeng 475001,Henan,China;3.Xuchang General Cigarette Factory,Xuchang 461000,Henan,China)

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ã€Abstractã€‘ Capillary gas chromatography/mass spectroscopy was used to analyze the components produced by heating the crude drug of Huai Shanyao(Dioscorea opposite Thunb.) at 300,400,450 and 500 â„ƒ,respectively.Caffeine was detected from the pyrolyzed component of the crude drug Huai Shanyao,which was firstly identified and confirmed in the components produced by heating the crude drug of Huai Shanyao.æ›´å¤š è¿˜åŽŸ