【摘要】 卷烟烟气样品经环己烷超声提取、薄层色谱分离纯化后 ,再用毛细管气相色谱分析测定 结果表明 ,多环芳烃的回收率在 80 %以上 ,检测限在 8— 10 0 pg之间 ,本方法测定的每支卷烟主流烟气中多环芳烃的浓度在 8 9— 4 5 4 8ng·支 -1之间 壳聚糖改性醋纤滤嘴对卷烟烟气中多环芳烃有较好的截滤效果更多还原

【Abstract】 A method for determination of polycyclic aromatic hydrocarbons(PAHs) in tobacco mainstream smoke by thin-layer/gas chromatography was established. The samples were extracted ultrasonically with cyclane, purified by thin-layer chromatography and then determined by gas chromatography. It was found that the recoveries of the PAHs were above 80% and the detection limits were between 8—100 pg.The PAHs in tobacco mainstream smoke were analyzed and their concentrations were found to be 8.9—454.8 ng/cigarette.Cigarettes with cellulose acetate filters modified by chitosan were measured and the decrease rates of PAHs were compared with the unmodified ones.更多还原