烟草是一种特殊的天然有机物,其组分相当复杂。烟草点燃后产生的烟雾,含有数千种气相、液相和固相化合物。其中,数百种对人体有害,数十种对人体有致癌性,世界8大致死性疾病中有6项与主动吸烟或被动吸烟有关[1,2]。烟草含有一种成瘾物质尼古丁,美国药物依赖学会的研究显示,在6种主要慢性成瘾性物质中,烟草的成瘾性排名第一, Tobacco is a special kind of natural organic substance whose composition is rather complicated. Smoke from lit tobacco contains thousands of gas, liquid and solid phase compounds. Of these, hundreds are harmful to the human body and dozens are carcinogenic to the human body. Six of the eight most deadly diseases in the world are related to active smoking or passive smoking [1,2]. Tobacco contains nicotine, an addictive substance, and studies by the American Association of Drug Dependence show that tobacco addiction ranks first among the six major chronic addictive substances,