抽吸条件对卷烟主流烟气pH和化学成分的影响研究

为了考察抽吸方式对卷烟主流烟气pH和化学成分的影响，以市售卷烟为试验材料，利用吸烟机研究深度抽吸条件下，卷烟烟气粒相物pH变化以及TPM、烟碱和CO释放量的差异。研究结果表明：提高抽吸频率、减少烟蒂长度、增加抽吸容量均能引起pH以及其他有害物质释放量的增加，但并不呈线性。某一抽吸参数的变化，对主流烟气气粒相物pH影响较小，而对烟碱释放量的影响较大。

Effect of Alterative Puffing Regime on pH and Chemical Compounds in mainstream smoke

In order to investigate the influence of smoking regime on the pH and the yields of chemical compounds of mainstream smoke, the difference of pH value, deliveries of TPM, nicotine and CO in mainstream smoke was studied with alternative puffing regime using smoking machine. Results showed that shortening puffing frequency, reducing butt length, increasing puffing volume and can increase pH value, yield of TPM, nicotine and CO in mainstream smoke. However, no linear relationship was found. When the puffing parameters were changed, the nicotine delivery of cigarette mainstream smoke was greater than on that of other matters, while pH value of cigarette mainstream smoke was smaller than on that of other matters.