以全自动固相萃取技术净化主流烟气萃取液,建立了卷烟主流烟气中苯并[a]芘、苯并[a]蒽和(艹屈)3种多环芳烃的气相色谱-串联质谱(GC-MS/MS)测定方法.以吸烟机抽吸卷烟,并以剑桥滤片捕集卷烟主流烟气,然后以含氘代苯并[a]芘内标的环己烷溶液萃取滤片,萃取液经全自动固相萃取仪净化后以GC-MS/MS分离检测.结果表明,苯并[a]芘、苯并[a]蒽和(艹屈)的检出限分别为0.05、0.16和0.23 ng/cig,回收率为91.5% ~ 102.1%,相对标准偏差(RSD)均小于5%.该方法的自动化程度高、操作简便、检出限低、重复性好,适用于卷烟主流烟气中苯并[a]芘、苯并[a]蒽和(艹屈)3种多环芳烃释放量的检测.
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