GC/MS was used to analyze volatile and semi-volatile components in gas phase and participate phase mainstream smoke from 18 cigarette brands. Distribution ratios of 48 components in both phases were obtained. Results showed that: (1) Contents of tuluene, D-limonnene, m-xylene, ethybenzene and 2-furfural in gas phase were significantly higher, while that of 1,2-propanediol, acetic acid, D-limonnene, 2-furanmethanol and 2-furfural in paniculate phase were significantly higher. (2) Distribution ratios of 19 components in both phases was significant correlated with cigarette types(p < 0.05) , while that of the other 29 components were not. (3)Distribution ratios of same volatile and semi-volatile components were decreased with their boiling points, and that of different components with similar boiling points were decreased with their polarities. (4)Distribution ratios of majority components in both phases were increased with decreased tar yield.%采用气质联用法对18种国内外卷烟主流烟气气相和粒相中共有的48种挥发性、半挥发性化合物进行了定量分析,研究了这些化合物在气相和粒相中的分配比.结果表明:①48种化合物中在气相中释放量较高的化合物是甲苯、柠檬烯、间二甲苯、乙苯和糠醛,在粒相中释放量较高的化合物分别是丙二醇、乙酸、柠檬烯、2-呋喃甲醇和糠醛；②有19种化合物的气相/粒相分配比与卷烟类型显著相关,另外29种化合物的气相/粒相分配比与卷烟类型相关性不显著；③卷烟主流烟气中同一类挥发性、半挥发性化合物的气相/粒相分配比随沸点的升高而减小,沸点相近的不同种类挥发性、半挥发性化合物的气相/粒相分配比随着其极性的减小而升高；④大多数挥发性、半挥发性化合物的气相/粒相分配比随着主流烟气焦油释放量的降低而增大.
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