切丝宽度对卷烟主流烟气7种Hoffmann成分释放量的影响

为研究切丝宽度对卷烟主流烟气中7种Hoffmann成分释放量（CO，NNK，NH3，HCN，BaP，巴豆醛，苯酚）的影响，通过改变切丝宽度，测定卷烟主流烟气中7种Hoffmann成分的释放量．结果表明：在考察的切丝宽度范围内，随着切丝宽度的增加，烟气中CO，HCN和苯酚逐渐下降，NH，逐步上升，NNK和BaP先上升后下降，而巴豆醛和卷烟危害性指数保持不变；降低切丝宽度有利于选择性降低烟气中的NH3、BaP和巴豆醛，提高切丝宽度有利于选择性降低烟气中CO，HCN和苯酚．兼顾卷烟品质和卷烟减害，最佳切丝宽度为0．95mm．

Effects of cutting width of tobacco on 7 kinds of Hoffmann components of mainstream smoke

In order to explore effects of cutting width of tobacco on 7 kinds of Hoffmann components （ CO, NNK, NH3, HCN, BaP, crotonaldehyde, phenol） of mainstream smoke, the 7 kinds of Hoffmann components in mainstream smoke of cigarettes with different cutting width of tobacco were detected. The results indica- ted that：within the studied scope of the cutting width,with the increase of cutting width, CO, HCN and phe- nol in mainstream smoke decreased, NH3 increased, NNK and BaP first increased and then decreased, while crotonaldehyde and hazard index remained unchanged ; reducing the cutting width was good to selectively decreasing NH3, BaP and crotonaldehyde, while improving the cutting width was conducive to the selective reduction of CO, HCN and phenol. To take tobacco quality and tobacco harm reduction into consideration, the best cutting width was O. 95 mm.