不同滤嘴通风中细支卷烟烟气主要中性和碱性香味成分逐口释放规律

为考察不同滤嘴通风中细支卷烟烟气主要中性和碱性香味成分逐口释放规律，分析17 mm和20 mm圆周卷烟在0%、25%和50%滤嘴通风度下主流烟气主要中性和碱性香味成分逐口释放量，比较相同滤嘴通风、不同圆周卷烟烟气主要中性和碱性香味成分逐口释放的差异性，考察滤嘴通风对中细支卷烟烟气主要中性和碱性香味成分逐口释放均值的影响。结果表明:①不同滤嘴通风中细支卷烟主流烟气大部分中性和碱性香味成分逐口释放量最小值出现在第1口。②当滤嘴通风相同时，17 mm和20 mm两种圆周卷烟主流烟气苯甲醛，糠醛，3-戊烯-2-酮，苯乙烯等4种成分逐口释放存在显著性差异，细支卷烟这4种成分逐口释放量均值高于中支卷烟。③不同滤嘴通风度下中细支卷烟烟气中柠檬烯，3-戊烯-2-酮，2-甲基吡嗪，2, 4-二甲基吡啶，2-甲基吡啶，2, 5-二甲基吡啶逐口波动较大。④大部分中性和碱性成分逐口释放量均值随着滤嘴通风增加逐渐降低，降幅与分子量有关。 

Puff-by-puff release of main neutral and alkaline aromatic components in slim and medium-sized cigarettes smoke from different filter ventilation

In order to investigate the puff-by-puff release of main neutral and alkaline aromatic components in slim and medium-sized cigarettes smoke for different filter ventilation, the puff-by-puff release of main neutral and alkaline aromatic components in mainstream smoke for 17 mm and 20 mm cigarettes was analyzed, with 0%, 25% and 50% filter ventilation. The change trend and stability of the puff-by-puff release of neutral and alkaline aromatic components was investigated. The difference in the release of neutral and alkaline aromatic components in cigarettes smoke with the same filter ventilation and different circumferences was compared, and the effect of filter ventilation on the average release of neutral and alkaline aromatic components in the smoke of slim and medium-sized cigarettes was also investigated. The results show that: ①The smallest amount of neutral and alkaline aromatic components in cigarette smoke of the slim and medium-sized cigarettes in different filter ventilation appeared in the first puff. ②When the filter ventilation is the same, the puff-by-puff release of benzaldehyde, furfural, 3-penten-2-one, styrene are significant different in cigarette smoke of the slim and medium-sized cigarettes. The average release amount of these four components in slim-sized cigarettes smoke is higher than that of medium-sized cigarettes. ③The puff-by-puff release of limonene, 3-penten-2-one, 2-methylpyrazine, 2, 4-dimethylpyridine, 2-methylpyridine, 2, 5-dimethylpyridine fluctuate greatly, while benzaldehyde has a good stability. ④The average puff-by-puff release amount of most neutral and alkaline aromatic components gradually decreases with the increase of filter ventilation, the decrease extent was related to the molecular weight.