Abstract: Analysis of Waste Gas of Automobile by GC/MSGuo Haicheng;Xu Zili;Deng Qing;Cul Lan;Zhou Xiuqing;Wang Ling(Aanlytical and Testing Center ;Department of Environment Science,Jinn University,Changchun 130023,China)Abstract:It is described for improve method of Finnigan - MAT 4 5 1 0 GG / MS introduction system in this paper.The gas sample and product of solid thermal desorption are analysed by the device refit,so the study of surface adsorbent (for dxample catalyst)is convenienced.We have used this device refit to conentrate and analyse the waste gas of automobile.Keywords:introduction system, refit, waste gas of automobile