烟草科技2019，Vol.52Issue(1)：67-72,6.
动态捕集针-气相色谱/质谱联用法测定电子烟烟液中的挥发性成分
Determination of volatile components in e-liquid by needle trap-GC/MS
摘要
Abstract
For analyzing the volatile components in e-liquids, a NT-GC/MS method was developed by optimizing sampling methods, extraction and desorption conditions. Four types of e-liquids were tested with the developed method. The results indicated that: 1) The optimum pretreatment conditions were extraction at a constant current pump velocity 7 mL/min at 50 ℃ and desorption at 250 ℃ by heating closed cycle purging NT with a blowing needle. 2) 31 compounds were identified in e-liquid sample A by NT-GC/MS; the average relative standard deviation of components’peak areas was 5.37% for 5 repeated tests of sample A. 25 compounds were identified in sample A by SPME-GC/MS; the average relative standard deviation of components’ peak areas was 8.59% for 5 repeated tests of sample A. 3) The most important aroma substances in the four different e-liquids were 2,3,5-trimethylpyrazine, peachlactone, benzylalcohol and cis-jasmone, because they played an important role in demonstrating the aroma characteristic of an e-cigarette. This method features a high sensitivity and good repeatability, it is suitable for the rapid analysis of volatile components in e-liquids.关键词
电子烟/烟液/动态捕集针/气相色谱/质谱联用/挥发性成分Key words
E-cigarette/ E-liquid/ Needle trap/ GC/MS/ Volatile component分类
轻工纺织引用本文复制引用
..动态捕集针-气相色谱/质谱联用法测定电子烟烟液中的挥发性成分[J].烟草科技,2019,52(1):67-72,6.基金项目
国家自然科学基金资助项目"批次过程监测与故障诊断的基础理论研究"(61422306) （61422306）
NSFC-浙江省两化融合基金资助项目"百万千瓦超临界机组的精细状态监测、故障诊断与自愈调控关键技术研究"(U1709211). （U1709211）
