顶空气相色谱法测定烟用胶粘剂中的有机挥发物

Determination of volatile organic compounds in Adhesive for Cigarette by Headspace Gas Chromatography

摘要:

采用顶空气相色谱法对烟用胶粘剂中的有机挥发物（甲醇、丙酮、乙酸甲酯、叔丁醇、乙酸乙烯酯、乙酸乙酯）进行分析，讨论了气相色谱柱的升温方式、顶空平衡温度、平衡时间、胶粘剂加入量对分析结果的影响，从而获得优化的检测工艺参数。该检测方法对上述六种有机挥发物的线性范围分别为甲醇0～400礸，丙酮0～40礸，乙酸甲酯0～92礸，叔丁醇0～32，乙酸乙烯酯,0～75礸，乙酸乙酯0～45礸；测定结果的相对标准偏差为0.6%～2.7%；样品的回收率为90.8%～104.2%；可用于烟用胶粘剂中有机挥发物的分析，方法简便、快速、重现性好。

Abstract:

A new method for the determination of volatile organic compounds (methanol, acetone, methyl acetate, tertiary butanol, vinyl acetate and ethyl acetate) in adhesive for cigarette by headspace gas chromatography was investigated. The effects of temperature programming, equilibrium time, equilibrium temperature and quantity of the adhesive on the experimental result were discussed, and an optimal process variable for the determination of volatile organic compounds was obtained. The results show that the linearity range of this method is 0～400礸 for methyl alcohol, 0～40礸 for acetone, 0～92礸 for methyl acetate, 0～75礸 for tertiary butanol, 0～75礸 for vinyl acetate and 0～45礸 for ethyl acetate, respectively. The relative standard deviations was 0.6%～2.7%, and the recovery was 90.8%～104.2%. This method to determiante volatile organic compounds in adhesive for cigarette is simple, rapid, accurate.