空腔复合滤嘴结构对卷烟主流烟气常规化学成分释放量的影响

Effects of combined cavity filter structure on routine chemical component releases in mainstream cigarette smoke

为研究空腔复合滤嘴结构对卷烟主流烟气常规化学成分释放量的影响,制备了3种规格(粗支、中支、细支)卷烟样品,并测定其吸阻值,分析了不同空腔深度、烟支吸阻和空腔滤嘴截面面积条件下主流烟气总粒相物、焦油、烟碱及CO的释放量,建立了岭回归模型。结果表明:(1)简单相关分析中3种规格卷烟主流烟气总粒相物、焦油及烟碱的释放量均受空腔深度和烟支吸阻的显著影响。(2)偏相关分析中,在控制变量的情况下,粗支卷烟主流烟气总粒相物、焦油和烟碱的释放量均受烟支吸阻的显著影响;中支卷烟主流烟气总粒相物、焦油和烟碱的释放量均受空腔深度和空腔滤嘴截面面积的显著影响;空腔深度、烟支吸阻和空腔滤嘴截面面积对细支卷烟主流烟气常规化学成分释放量的影响不显著。(3)经岭回归分析得到了3种规格卷烟主流烟气的总粒相物、焦油和烟碱释放量的回归模型,可用来预测改变滤嘴结构对卷烟烟气常规化学成分释放量的影响,预测值与实测值的相对误差大部分位于±5%误差线内。

To investigate the effects of combined cavity filter structures on routine chemical component releases in mainstream cigarette smoke,cigarette samples of three specifications(conventional,demi-slim and slim)were prepared and their draw resistances measured.The releases of total particulate matter(TPM),tar,nicotine and CO in mainstream cigarette smoke at different cavity depths,cigarette draw resistances,and cross-sectional areas of the cavity filters were analyzed and ridge regression models were developed.The results showed that:1)Using simple correlation analyses,the releases of TPM,tar and nicotine in mainstream smoke of the three cigarettes were significantly affected by the cavity depth and cigarette draw resistance.2)In the partial correlation analysis,in the case of control variables,the releases of TPM,tar and nicotine in the mainstream smoke of the conventional cigarettes were significantly affected by its draw resistance.The releases of TPM,tar and nicotine in the mainstream smoke of demi-slim cigarettes were significantly affected by its cavity depth and cross-sectional areas of the cavity filters.The effects of cavity depth,cigarette draw resistance and cross-sectional areas of the cavity filters on the routine chemical component releases in the mainstream smoke of the slim cigarettes were not significant.3)The regression models of TPM,tar and nicotine releases in mainstream smoke of cigarettes of the three specifications were obtained by ridge regression analysis,which could be used to predict the effects of filter structure variations on these routine chemical components in mainstream cigarette smoke.The relative errors between the predicted and measured values were mostly within±5%.