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为了准确测定电子烟烟气释放物中醇类化合物的量,以1,4-丁二醇为内标建立了同时检测电子烟烟气释放物中1,2-丙二醇、1,3-丁二醇、丙三醇、二甘醇和三甘醇的气相色谱/质谱(GC/MS)方法,采用该法测定了16种电子烟样品。结果表明:1该法的检出限和定量限范围在0.08~0.32μg/口和0.27~1.07μg/口之间;回收率在90.0%~99.5%之间,相对标准偏差(RSD)为1.20%~4.93%。2所测样品中均检出1,2-丙二醇、丙三醇,均未检出二甘醇和三甘醇;4个样品中检测出1,3-丁二醇。该法灵敏度高、定性准确,适合电子烟样品烟气释放物中1,2-丙二醇、1,3-丁二醇、丙三醇、二甘醇和三甘醇的定性定量分析。
In order to accurately determine the amount of alcohol compounds in the electronic cigarette smoke gas emissions, 1,4-butanediol as the internal standard to establish a simultaneous detection of electronic cigarette smoke gas release 1,2-propanediol, 1,3-butanediol Alcohol, glycerol, diethylene glycol and triethylene glycol gas chromatography / mass spectrometry (GC / MS) method, the determination of 16 electronic cigarette samples. The results showed that: 1 The limit of detection and the limit of quantification ranged from 0.08 to 0.32μg / well and from 0.27 to 1.07μg / well; the recoveries ranged from 90.0% to 99.5% with a relative standard deviation (RSD) of 1.20 % ~ 4.93%. 1,2-propanediol and glycerol were detected in all the 2 samples, but none of diethylene glycol and triethylene glycol were detected; 1,3-butanediol was detected in 4 samples. The method has high sensitivity and qualitative accuracy, and is suitable for qualitative and quantitative analysis of 1,2-propanediol, 1,3-butanediol, glycerol, diethylene glycol and triethylene glycol in the smoke emission of electronic cigarette samples.