Abstract:
The methane,ethylene and acetylene in gas phase in mainstream smoke were determinated by GC.They were analyzed quantitatively by external standard.The parameters of sampling and the stability of instrument were studied.The method was simple,fast and accurate with good linear relation(methane r=0.9993,ethylene r=0.9998,acetylene r=0.9994).And the recovery was more than 85%,RSD was less than 3%,The proposed method has been applied to analyse samples,giving reliable and satisfactory results.