Py-GC-MS Analysis of Products in Smoke Released from Cigarettes During Smoking

Cigarette sample was treated at different pyrolytic temperature with the CDS 5200 pyrolysis instrument appended with adsorption trap,and the pyrolytic products in the smoke released from the sample were inspected by GC-MS for contents of the characteristic components,i.e.,nicotine,neophytadiene and some other harmful substances.The results obtained were compared with the analytical results obtained by the method of standard GB/T 19609-2004.It was found that ① amounts of harmful pyrolysates released were decreased significantly with the decrease of pyrolytic temperatures;② amount of semi-volatile nicotine was not related to changes of pyrolytic temperatures similar to the temperatures of smoking;③ amounts of the non-volatile neophytadiene released were decreased with increase of pyrolytic temperature;④ nearly same amounts of nicotine and neophytadiene were found under the pyrolytic temperatures similar to the temperatures of burning of cigarettes in smoking;⑤ nicotine in the smoke-stream was released mainly by distillation,not by pyrolysis;⑥ lowering of temperature of smoking was beneficial to decrease the amount of harmful substances released from the cigarettes in smoking;⑦ the proposed method was proved to be feasible for the simulation analysis of products in smoke of cigarette smoking.