卷烟烟气pH值研究进展

Advantage of pH value in cigarette smoke

卷烟烟气pH值能反映出烟气中游离烟碱占比,而游离烟碱含量与卷烟的抽吸品质关系密切,因此研究卷烟烟气的pH值具有十分重要的意义。文章对目前卷烟烟气pH值常用的测定方法进行综述,分析讨论卷烟抽吸方式和支数、萃取剂组成和配比、萃取液吸收的对象和体积、萃取方式和时间等参数对卷烟烟气pH值测定结果的影响;对文献中样品来源及所测pH值范围进行统计分析;讨论卷烟烟气pH值与卷烟抽吸品质的关系。分析了卷烟烟气pH值研究中存在的问题,并展望今后的研究方向。

The pH value of cigarette smoke can reflect the proportion of free nicotine in smoke, and the content of free nicotine is closely related to the quality of cigarelte. Therefore, it is of greal significance to study the pH value of cigarette smoke. In this paper, the current pH value determination methods of cigarette smoke were reviewed, the influences of parameters determination were discussed, such as the methods and counts of cigarette smoking, ex- traction composition and ratio, object extraction liquid absorption and extraction time and volmne. The samples in the literature and the range of pH value were analyzed. The problems in the research of pH value of cigarette smoke were analyzed, and the development was also prospected.