Abstract: GC/MS Analysis of Sulphide in the Smoke of Processing and Vulcanizi ng RubberGao Tianrong;Liu Jianhong (Analysis and Testing Center of Yunnan Normal University,Kunming 650092,China )Li Weijun(Yunnan Institute of the Occupatonal Disease for the Prevention and Cure,Kunming,China)Abstract:Mass spectromery analysis of sulphide in the smoke of rubber by way of direct sampling is described.The method can avoid the lose of sample through the joint hole of separator and is advantageous to determine microcomposition.Keywords:direct injection(DI),gas chromatograph/mass spectrometry,sensitivity.