中文摘要：

为了测定环境烟气（ETS）中对人体和环境有潜在危害的化学污染物，建立了一种快速分析丙烯腈、巴豆醛、吡啶和喹啉4种挥发性、半挥发性有机化合物的大气压化学电离（APCI）-串联质谱（MS／MS）方法。采集的ETS样品不经任何前处理，由质谱进样端直接引入到改造后的APCI离子源内，采用多反应监测模式（MRM）对其进行快速定量分析。结果表明：4种有机化合物的定量分析标准工作曲线线性关系较好（R2〉0．999），检测限和相对标准偏差分别为0．39～0．70ng／L和5．14％～9．42％。该方法操作简单、灵敏度高，适合于快速检测ETS中的丙烯腈、巴豆醛、吡啶和喹啉。

英文摘要：

In order to determine the chemical pollutants in environmental tobacco smoke （ETS） which might possess potential risks to human health and environment, an atmospheric pressure chemical ionization （APCI）-tandem mass spectrometry （MS/MS） method was established to fast analyze four volatile and semi-volatile organic compounds （acrylonitrile, crotonaldehyde, pyridine and quinoline） in ETS. The ETS samples without any pretreatment was directed into a modified APCI ion source via inlet end of mass spectrometer and analyzed under multi-reaction monitoring （MRM） mode. The results showed that the calibration curves of the four compounds exhibited good linear relations （R2〉0.999） with the limits of detection from 0.39 to 0.70 ng/L and the relative standard deviations （RSDs） from 5.14% to 9.42%. This method is simple in operation and features higher sensitivity, it is suitable for the fast analysis of acrylonitrile, crotonaldehyde, pyridine, and quinoline in ETS.