中国烟草学报2009，Vol.15Issue(5)：14-19,6.DOI:10.3969/j.issn.1004-5708.2009.05.004
卷烟主流烟气气溶胶分布研究
Research on particle size distribution in cigarette mainstream smoke aerosols
摘要
Abstract
In order to study the particle size distribution of aerosols in mainstream smoke of different cigarette brands, four samples were tested according to a standard regime. After on-line 200:1 dilution, particle diameter and number concentration were directly conducted by using electrical low pressure impactor (ELPI) with a measurement range from 7-10000 nm. The re-sults showed that, the particle size distribution differed in different cigarette brands. During the smoking process, the concen-tration of smoke aerosols increased puff by puff. The profile of aerosol size distribution peaked in the range of 0.261～10.381 micron for samples A and D, and 0.028 micron for samples B and C. Median particle diameter was 0.23 micron for samples A and D, and 0.16 micron for samples B and C. The average aerosol concentration of the four samples was between 1.09× 10~9p/cm~3 and 2.21×10~9p/cm~3, and a similar pattern of particle number was observed with a range from 2.29×10~(11) to 3.88 ×10~(11) particles per cigarette.关键词
主流烟气/气溶胶/粒子分布Key words
mainstream smoke/aerosols/particle distribution分类
轻工纺织引用本文复制引用
沈光林,谢婷婷,孔浩辉,李峰,卢志菁,张心颖,马青,林夏丹,马丽娜,张优茂..卷烟主流烟气气溶胶分布研究[J].中国烟草学报,2009,15(5):14-19,6.基金项目
广东中烟工业有限责任公司科技项目(200805060) （200805060）
