| 7种烟用添加剂对烟气气溶胶粒径分布的影响 |
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| 引用本文： | 司晓喜,朱瑞芝,王洪波,刘强,张凤梅,崔华鹏,赵乐,向能军,缪明明,刘志华.7种烟用添加剂对烟气气溶胶粒径分布的影响[J].中国烟草学报,2018,24(3):1-8. |
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| 作者姓名： | 司晓喜 朱瑞芝 王洪波 刘强 张凤梅 崔华鹏 赵乐 向能军 缪明明 刘志华 |
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| 作者单位： | 1.云南省烟草化学重点实验室, 云南中烟工业有限责任公司技术中心, 云南昆明红锦路367号 650231 |
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| 基金项目： | 2017年中国烟草总公司企业标准制修订项目2017QB002云南中烟科技计划资助重点项目2016JC04云南中烟科技计划资助重大专项项目2017CP02 |
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| 摘 要： | 为研究典型烟用添加剂（包括丙二醇、丙三醇、呋喃酮、香兰素、乙酰丙酸、亚麻酸和棕榈酸）对不同粒径烟气气溶胶粒相物质量分布的影响以及在气溶胶中的粒径分布，采用单通道吸烟机-电子低压撞击器（ELPI），分12级捕集烟气气溶胶粒相物，进行重量分析研究粒相物的质量分布，并采用GC-MS和LC-MS/MS测定了7种添加剂在不同粒径气溶胶中的分布。实验结果表明，添加7种添加剂的卷烟样品，其气溶胶粒相物的质量均主要分布在中间粒径上（0.14~1.17 μm），但添加不同添加剂对气溶胶质量粒径分布的影响不同，总体趋势如下:香兰素、乙酰丙酸、亚麻酸和呋喃酮能增加大于0.431 μm处粒相物质量，使小于0.261 μm处粒相物质量减小；丙二醇和丙三醇使0.261 μm处粒相物的质量减少；棕榈酸无明显影响。7种添加剂在不同粒径气溶胶粒相物中的释放量均随粒径增加先增加后减小，与粒相物质量分布一致，并主要分布在中等粒径0.261~0.722 μm的颗粒中，但不同添加剂在不同粒径粒相物中的浓度（释放量与粒相物质量之比）呈现不同的分布趋势:随着粒径的增加，丙二醇、乙酰丙酸、亚麻酸和棕榈酸的浓度先增加后减小，丙三醇的浓度先减小后略微增加，香兰素和呋喃酮的浓度无明显差异。添加合适的烟草添加剂可改变烟气气溶胶粒相物的分布，并在不同粒径粒相物中呈现不同的分布特征，研究结果可为卷烟配方设计及卷烟安全性研究提供理论基础和数据支持。
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| 关 键 词： | 烟气气溶胶 烟草添加剂 粒相物 质量分布 粒径分布 |
| 收稿时间： | 2017-05-25 |
Effects of seven tobacco additives on particle size distribution of cigarette smoke aerosol |
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| Affiliation: | 1.Key Lab of Tobacco Chemistry of Yunnan, R & D Center, China Tobacco Yunnan Industrial Co., Ltd., Kunming 650231, China2.Key Laboratory of Tobacco Chemistry, Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou 450001, China |
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| Abstract: | The aim of present research is to study the effect of 7 typical tobacco additives, i.e. propylene glycol, glycerin, furanone, vanillin, levulinic acid, linolenic acid and palmitic acid, on distribution of particle mass in cigarette smoke aerosol, and to investigate the distribution of these additives in cigarette smoke aerosol of different particle sizes. Particles of cigarette smoke aerosol were collected in 12 stages using single channel smoking machine coupled electrical low-pressure impactor (ELPI). The collected particles were weighted and analyzed by GC-MS or LC-MS/MS to determine the distribution of these 7 additives in cigarette smoke aerosol of different particle sizes. Results showed that the particle mass of cigarette smoke aerosol were mainly concentrated within medium size particles (0.14~1.17 μm), but the distribution characteristic varied with 7 additives added. Vanillin, levulinic acid, linolenic acid and furanone could increase mass of particles larger than 0.431 μm but reduce mass of particles smaller than 0.261 μm. Propylene glycol and glycerin could reduce mass of particles 0.261 μm. Palmitic acid had no significant impact on particle mass distribution. The study also found that these 7 additives was mainly concentrated within medium size particles (0.261~0.722 μm), and displayed a tendency of increasing at first and then decreasing with increase of particle size. This result is consistent with the tendency of particle mass. However, the concentration distribution (ratio of release amount to particle mass) of 7 additives varied with particle size of smoke aerosol. With the increase of smoke aerosol particle size, the concentrations of propylene glycol, levulinic acid, linolenic acid and palmitic acid were first increased and then decreased. The concentrations of glycerin exhibited contrary distribution pattern, i.e. first increasing and then decreasing with increase of smoke aerosol particle size. The concentrations of furanone and vanillin were more uniformly distributed throughout the entire particle size range. Adding proper tobacco additives proved to be an effective approach to change particle size distribution of cigarette smoke, and the size distribution of additives in smoke aerosol of different particle sizes was different. This study provided some theoretical reference for cigarette design and tobacco safety study. |
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