离子分子反应质谱法研究滤嘴中活性炭添加量对卷烟主流烟气有害成分的影响

Effects of activated carbon quantity in filter on selected harmful components in mainstream cigarette smoke by IMR-MS

为考察卷烟滤嘴中活性炭添加量对主流烟气中有害成分释放量的影响，按照0、1、2、3、4mg／mm用量将活性炭添加于卷烟样品的滤嘴中，并通过离子分子反应质谱与RM20H转盘型吸烟机的联用，对主流烟气气相物中氮氧化合物、烯烃、苯系物和醛酮类等有害成分的释放量进行了在线、逐口检测。结果表明：①卷烟滤嘴中活性炭添加量为3或4mg／mm时，主流烟气中4类有害成分的总释放量可降低8％～62％；②异戊二烯、1，3-丁二烯、苯等化合物具有点火效应，随着抽吸口序的增加其释放量总体上先降低后缓慢升高；③非打孔滤嘴卷烟样品在活性炭添加量为3mg／mm时效果较好，4类有害成分的总释放量降低了21％～61％；打孔滤嘴卷烟样品在活性炭添加量为4mg／mm时，烟气中目标物的逐口释放量较低，其中甲苯和醛酮类化合物的总释放量降低了约34％～62％。

In order to investigate the influences of activated carbon quantity in cigarette filter on the release of some harmful components in mainstream cigarette smoke, cigarette filters with activated carbon added at 0, 1, 2, 3, 4 mg/mm were prepared. Ion molecule reaction mass spectrometry （IMR-MS） coupled with an RM20H rotary smoking machine was adopted for on-line determination of nitrogen oxides, alkenes, benzene series, aldehydes and ketones on puff-by-puff basis. The results showed that： 1） When added at 3 or 4 mg/mm, the total release of the above harmful components in mainstream cigarette smoke were decreased by 8%-62%. 2） There was an ＂ignition （or the so-called 1st puff high） effect＂ for the release of isoprene, 1,3-butadiene and benzene, generally their release in mainstream smoke decreased post first puff then increased slowly with the proceeding puffs. 3） For unperforated filter cigarettes, these reduction effects of activated carbon were more pronounced at the addition of 3 mg/mm, and the total release of the harmful components in mainstream smoke was decreased by 21%-61%. For perforated filter cigarettes, the puff-by-puff release of the target analytes in mainstream smoke was lower at the addition of 4 mg/mm, and the total release of toluene, aldehydes and ketones decreased by 34%-62%.