气相色谱-质谱法测定电子烟烟液中的7种溶剂

Physical Testing and Chemical Analysis Part B:Chemical Analysis(2016)

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Abstract
提出了测定电子烟烟液中乙醇、1,2-丙二醇、丙三醇、二甘醇、三甘醇、四甘醇和五甘醇等7种溶剂的气相色谱-质谱法(GC-MS)。电子烟烟液经甲醇稀释超声提取后,用 DB-ALC1毛细管色谱柱(30 m×0.32 mm,1.8μm)分离,并用 GC-MS 进行分析,以1,3-丁二醇为内标物,采用内标法定量。7种溶剂的质量浓度与其峰面积在一定范围内呈线性关系,方法的测定下限(10s )为1.1~5.0 mg·L-1。加标回收率在91.2%~107%之间,相对标准偏差(n=5)在1.2%~3.5%之间。
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