【摘要】 研究了用电子自旋顺磁共振(ESR)法对香烟烟气中的自由基进行分析的样品处理方法及ESR检测方法.对四种英国产香烟样品中的粒相及气相自由基进行了分析检测并对检测结果进行了讨论.结论:大多数英国产的检测样品香烟中,含有1.5～3倍于国产对照香烟样品的气相自由基;而国产对照样品香烟的粒相自由基的含量水平则处于较高水平.实验结果还显示:同品牌的Sobranie香烟中,不同型号样品中粒相自由基含量与焦油含量具有负相关性,但不同品牌则不同;对于检测样品而言,气相自由基的含量与焦油含量有正相关性.更多还原

【Abstract】 The methods of preparing sample and analyzing free radical in smoke of four kinds of mix-cigarette made in Britain by ESR were studied in this paper. Analyzing the content of free radical in solid and gas state and discussing this result. The results are most of cigarette samples of low tar made in BRITAIN have 1.5～3 times content of free radical in gas state than in sample made in China, the level of content of free radical in solid state are lower and close. Show in analytic result: the level of free radical in solid state is direct ratio to the level of tar in the cigarette sample of same trademark but it does not so that between in the samples of different trademark. Therefore, we cannot to infer the content of free radial in cigarette smoke by the content of tar in it,especially to content of free radial in gas state.更多还原