中国是世界上最大的烟草生产和消费大国。调查显示,孕妇,儿童等非吸烟者环境烟草烟气(ETS)暴露现象仍普遍存在[1-3],保护非吸烟者免受二手烟的危害已迫在眉睫。2006年1月《烟草控制框架公约》在中国正式生效后,大量的控烟工作陆续展开。二手烟暴露状况虽有所改善,但是距离《烟草控制框架公约》规定的所有室内工作场所和室内公共场所都应无烟仍有很大距离,其中缺乏环境空气中烟草烟气的采样与检测方法是一个重要原因[4-5] China is the largest tobacco producer and consumer in the world. Surveys show that exposure of environmental tobacco smoke (ETS) to non-smokers such as pregnant women and children is still widespread [1-3]. It is imminent to protect non-smokers from second-hand smoke. January 2006 “Tobacco Control Framework Convention” came into effect in China, a large number of tobacco control work in succession. Although the status of second-hand smoke exposure has improved, there is still a long way to go without smoke from all indoor workplaces and indoor public places stipulated in the Framework Convention on Tobacco Control. There is a lack of sampling and detection methods for tobacco smoke in ambient air Is an important reason [4-5]