Determination of Residual Organic Solvents in Cigarette Packing Materials by Head-Space Gas Chromatography

Head-space gas chromatography was applied to the determination of 4 residual organic solvents,i.e.ethyl acetate,butyl acetate,toluene and ethyl benzene,in cigarette packing materials and the effects of various analytical conditions were studied and optimized.Linear relationship were obtained in the ranges of 0.4-120 mg·L-1(for ethyl acetate and toluene),1.2-600 mg·L-1(for butyl acetate) and 0.5-150 mg·L-1(for ethyl benzene).Precision and recovery were tested and values found were in the ranges of 2.5%-3.1% and 90%-95% respectively.The proposed method has been applied to the analysis of carton and aluminum foil samples for the residual organic solvents.