摘要
为了考察主流烟气气相成分的逐口释放特征，建立了在线分析卷烟主流烟气中丙烯腈、丙烯醛、巴豆醛、苯、甲苯、吡啶和苯乙烯7种有机化合物的大气压化学电离串联质谱（APCI—MS／MS）方法。通过改造将吸烟机与APCI．MS离子源连接，卷烟主流烟气经剑桥滤片过滤后，气相部分被直接引入到APCI-MS离子源内进行分析。结果表明：7种有机化合物定量分析标准工作曲线线性关系较好（R2〉0．99），检测限和相对标准偏差分别为0．016～2．05ng／mL和2．63％～8．89％。卷烟主流烟气气相物中7种有机化合物的单口及总释放量差异较大，逐1：7释放特征也存在差异。该方法操作简单、响应快速、灵敏度高、稳定性好，适合用于卷烟烟气的逐口释放特征研究。
In order to investigate the puff-by-puff release characteristics of gas phase of mainstream cigarette smoke （MSS）, an atmospheric pressure chemical ionization tandem mass spectrometry （APCI-MS/MS） method was developed for on-line analysis of seven organic compounds, including acrylonitrile, acrolein, crotonaldehyde, benzene, toluene, pyridine and styrene, in gas phase of MSS. A smoking machine was modified to couple with an APCI-MS ion source, after passing through a Cambridge filter, the gas phase of MSS was directly introduced into the APCI-MS ion source for analysis. The results showed that： The calibration curves of the organic compounds exhibited good linear relations （R~〉 0.99） with the limits of detection from 0.016 to 2.05 ng/mL and the relative standard deviations （RSDs） from 2.63% to 8.89%. The single puff and total yields of the said organic compounds differed tremendously, and did the puff-by-puff release characteristics of the organic compounds. This method is simple, fast, sensitive, repeatable and suitable for the investigation of puff-by-puff release characteristics of MSS.
出处
《烟草科技》
EI
CAS
北大核心
2014年第1期40-44,共5页
Tobacco Science & Technology
基金
国家烟草专卖局项目"烟草制品感官舒适性评价技术研究"(110200902017)
郑州烟草研究院院长基金项目"环境烟气质谱分析方法研究"(412011CA0290)
