Abstract:

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.