摘要
为探究不同抽吸模式下加热卷烟烟气pH值与烟碱含量的关系,建立了加热卷烟烟气粒相物pH值的测定方法,采用GCFID测定了14种市售加热卷烟样品不同抽吸模式下烟气粒相物中总烟碱和游离烟碱含量,分析烟气粒相物pH值、游离烟碱和总烟碱含量以及加热卷烟劲头之间的关系。结果表明:(1)建立的加热卷烟烟气粒相物pH值的测定方法日内和日间相对标准偏差均小于1%,重复性和再现性良好。(2)加热卷烟烟气粒相物p H值受抽吸模式影响较大,ISO模式(6.02~6.46)下pH值明显高于HCI模式(5.92~6.18);(3)ISO和HCI两种模式下,烟气中总烟碱含量分别在0.45~0.65 mg/支和1.30~1.88 mg/支,而游离烟碱含量分别在0.12~0.24 mg/支和0.16~0.44 mg/支;(4)不同抽吸模式下的烟气粒相物pH值均与游离烟碱占比、游离烟碱含量呈显著正相关;(5)总烟碱含量与游离烟碱含量也呈显著正相关,但与烟气pH值、游离烟碱占比之间均无相关性;(6)HCI模式下,加热卷烟劲头与烟气粒相物pH值、游离烟碱含量及游离烟碱占比之间均存在一定相关性。
This study aims to explore the relationship between the pH and nicotine content in smoke of heated tobacco products under different smoking regimes.A method for determining the pH value of particulate matter in smoke was established,and the contents of nicotine and free nicotine in the particulate matter of 14 commercially available heated tobacco products were determined by GC-FID.In addition,the relationship among cigarette strength,pH value of particulate matter,free nicotine and total nicotine content was analyzed.The results showed that:1)The method for determining the pH value of particulate matter was established,with inter-and intra-day relative standard deviations less than 1%;2)The pH value of particulate matter in smoke was greatly affected by the smoking regime,and the Ph value of particulate matter under the ISO regime(6.02~6.46)was significantly higher than that under the HCI regime(5.92~6.18);3)Under the ISO and HCI regimes,the total nicotine content in the main stream smoke was 0.45~0.65 mg/cig and 1.30~1.88 mg/cig,respectively,while the free nicotine content was 0.12~0.24 mg/cig and 0.16~0.44 mg/cig,respectively;4)The pH of the particulate matter was significantly positively correlated with the content of free nicotine as well as the proportion of nicotine under both smoking regimes;5)The content of total nicotine was also strongly correlated with the content of free nicotine,but has no correlation between the pH of the smoke or the proportion of free nicotine;6)Under HCI mode,there was a certain correlation among cigarette strength and the pH value of particulate matter in smoke,the content of free nicotine and the proportion of free nicotine.
作者
刘梦梦
王晨辉
张媛
朱龙杰
董卉林
伍鹏霖
吴昌健
朱怀远
曹毅
LIU Mengmeng;WANG Chenhui;ZHANG Yuan;ZHU Longjie;DONG Huilin;WU Penglin;WU Changjian;ZHU Huaiyuan;CAO Yi(China Tobacco Jiangsu Industrial Co.,Ltd.,Nanjing 210019,China)
出处
《中国烟草学报》
CAS
CSCD
北大核心
2023年第3期1-9,共9页
Acta Tabacaria Sinica
基金
江苏中烟工业有限责任公司科技项目“加热卷烟烟气pH值和游离烟碱含量的关系研究”(202024)。
