不同GL/PG质量比和添加总量对加热卷烟气溶胶逐口释放特性的影响
The effect of the mass ratio and total amount of GL/PG on the puff-by-puff release characteristics of heated cigarette aerosol
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摘要: 为研究发烟剂配比和添加量对加热卷烟气溶胶释放特性的影响,制备了不同丙三醇(GL)/1,2-丙二醇(PG)质量比和添加总量的加热卷烟样品,通过吸烟机逐口抽吸并捕集气溶胶,检测并分析了不同加热卷烟样品气溶胶捕集物、PG、GL和烟碱的逐口释放规律。结果表明:1)固定GL/PG添加总量为20%(质量分数),随着GL/PG质量比从95/5降至50/50,PG的逐口释放量增加、总释放量的增加趋势越明显,GL的逐口释放量减少、总释放量的降低趋势越明显,烟碱的逐口释放量减少、总释放量线性减少,发烟剂GL/PG质量比与气溶胶中GL/PG质量比基本呈线性相关。2)固定GL/PG质量比为80/20,随着发烟剂添加总量从0%增至25%,PG和GL的释放量增加、逐口释放稳定性降低;添加总量>10%时,气溶胶逐口捕集量明显增加,但烟碱的释放量变化不大;GL/PG添加总量对气溶胶中GL/PG质量比影响不显著。Abstract: In order to study the influence of ratio and amount of smoke producing agent on the release characteristics of the heated cigarette smoke aerosol, a series of heated cigarettes with different mass ratio and amount of glycerol (GL)/1,2-propylene glycol(PG) were prepared. The cigarette was sucked by the smoking machine and the aerosol was collected puff-by-puff, then the release of aerosol collected mass, PG, GL and nicotine in different heated cigarette samples were detected and analyzed. The results showed that when the total amount of GL/PG was 20% (mass fraction), with the GL/PG mass ratio decreasing from 95/5 to 50/50, the puff-by-puff release quantity of PG increased and the increase trend of total PG release quantity was more obvious, the puff-by-puff release quantity of GL decreased and the decrease trend of total GL release quantity was more obvious, and the puff-by-puff release quantity of nicotine decreased and the total release decreased linearly. The GL/PG mass ratio of smoke producing agent was basically linearly correlated with the GL/PG mass ratio in aerosol. When the mass ratio of GL/PG was fixed at 80/20, with the total addition amount increased from 0% to 25%, the release quantity of PG and GL increased, and the stability of puff-by-puff release decreased; when the total addition amount was more than 10%, the puff-by-puff quantity of aerosol collected mass increased significantly, and the release quantity of nicotine changed slightly. The total addition amount of GL/PG in heated cigarette had no significant effect on the GL/PG mass ratio in aerosol.
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Key words:
- heated cigarettes /
- aerosol /
- smoke producing agent /
- 1,2-propylene glycol /
- glycerol /
- puff-by-puff release
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