王珂清 秦艳华 吴洋 王瑞 张合川 尤晓娟 刘献军 朱怀远 曹毅 张华 沈晓晨

摘 要：为了解加热卷烟烟气中氨释放特性，选择7种加热卷烟样品，在ISO抽吸模式下，应用离子色谱检测其烟气中氨的总释放量、逐口释放量以及烟芯中铵离子含量，并分析氨释放量与铵离子的相关性。结果发现：（1）多数加热卷烟氨释放量介于1～3 μg/支之间;（2）多数加热卷烟氨逐口释放量前5口逐口增加，然后缓慢下降;（3）多数加热卷烟逐口释放量后3口的RSD低于前3口;（4）烟芯中铵离子含量介于6.2～82.3 μg/支（28.8～392.8 μg/g）;（5）同一家公司的加热卷烟的氨释放量与铵盐有显著相关性，而不同公司之间的则无相关性。上述研究表明，与常规卷烟相比，多数加热卷烟氨释放量与焦油释放量低于5 mg/支的细支卷烟接近，且逐口释放量分段分布的均匀性优于细支卷烟;铵盐对加热卷烟氨的释放量有影响，但并不是主导因素。

关键词：氨释放;加热卷烟;离子色谱;逐口;铵离子

Abstract： In order to analyze the characteristics of ammonia release in heat-not-burn （HNB） cigarette smoke， 7 kinds of HNB cigarettes were chosen to determine total ammonia release， puff-by-puff ammonia release and NH4+ contents by ion chromatography under the ISO suction mode. The correlation between ammonia releases and NH4+ contents was investigated. The results showed that： （1） The ammonia releases of most HNB cigarettes ranged from 1-3 μg/cig; （2） The puff-by-puff ammonia release of most HNB cigarettes increased in the first five puffs， then decreased slightly; （3） The RSD of the last three puffs was lower than that of the first three puffs for most HNB cigarettes; （4）The content of NH4+ in the core of the HNB cigarettes was between 6.2-82.3 μg/cig（28.8-392.8 μg/g）; （5）There was a significant correlation between ammonia release and ammonium salts in the HNB cigarettes of the same company， but no correlation in those of different companies. The above results demonstrated that： compared with the conventional cigarettes， the ammonia release of most HNB cigarettes was close to that of the fine cigarettes with tar release less than 5 mg per cigarette， and the uniformity of distribution of puff-by-puff ammonia release was better than that of the fine cigarettes; Ammonium salts had effects on ammonia release of HNB cigarettes， but it was not the dominant factor.

Keywords： ammonia release; heat-not-burn cigarettes; IC; puff-by-puff; NH4+

氨是卷煙主流烟气中7种有害成分之一[1]。目前，卷烟主流烟气中氨的检测方法，主要有离子色谱法以及连续流动法[2-3]。与传统卷烟不同，加热卷烟是通过对烟丝进行加热释放烟气，以满足吸烟者的需求[4]。加热卷烟由于以密闭加热代替燃烧使烟草成分蒸馏和裂解释放烟气，且加热温度在200400 ℃，较传统卷烟的有害成分和侧流烟气释放量明显减少[5-6]。但是，加热卷烟主流烟气有害成分中NH3释放量与传统卷烟释放量相差不大[7]。因此，有必要对加热卷烟主流烟气中的氨开展研究。……