烟草味电子烟油中挥发性成分分析

Analysis of the Volatile Components in Tobacco Flavor Electronic Cigarette Liquids

采用二氯甲烷对3家公司的5种电子烟油样品进行萃取,并用气-质联用(GC-MS)法鉴定。通过对NIST 11谱库的检索,对5种样品中挥发性成分进行了比较分析。结果表明5种样品中的挥发性成分差别较大,共鉴定出40种挥发性成分,依据作用或来源分为雾化剂、烟叶提取物和薄荷提取物三类。其中相对含量水平较高且在5种样品中都检出的成分是丙二醇、烟碱和甘油。3家公司的5种烟草味电子烟油在抽吸品质上有所差异,C公司样品在抽吸感官感受上相较其他两家公司样品具有明显优势,其中样品C1又略好于C2。比较发现,C公司电子烟油的挥发性成分中含特有的8种多甘醇类化合物,可能是这些物质的协同作用而改善了抽吸品质。

Five kinds of tobacco flavor electronic cigarette liquids origin from three companies were extracted by dichloromethane,40 volatile components were identified by GC-MS.Results indicated that the differences were significant among five kinds of tobacco flavor electronic cigarette liquids.All components were sorted to three groups according their function and origin：fogging agent,tobacco extracts and mint extracts.There were three common compounds with higher content in five samples,including propylene glycol,nicotine and glycerin.There were significant differences in smoking quality of samples from three companies,company C′s showed a notable advantage over the other two companies,sample C1 was slightly better than sample C2.Meanwhile,there were 8kinds of distinctive multiethylene glycol compound that only existed in samples from company C,but not found in samples from companies A or B.It was probably the combined effect of these substances that improved the sensory quality of tobacco flavor electronic cigarette liquids.