吸烟过程中重金属挥发量的测定

原子荧光光谱、石墨炉原子吸收光谱法测定了不同品牌香烟中重金属的本底值与香烟吸过后过滤嘴、烟头和烟灰中重金属的总残留量,并计算在吸烟过程中重金属的挥发量。结果表明,在吸烟过程中,香烟中砷和铅挥发性较小,且通过烟头及过滤嘴的吸附,对主动吸烟者及被动吸烟者造成危害甚微;而汞和镉的挥发性较大,且过滤嘴吸附量较小,故对主动吸烟者及被动吸烟者均可能造成危害。

Determining the Volatile Quantity of Heavy Metal Elements in the Course of Smoking

The amounts of heavy metal elements in cigarette background and their total residuals in filter tip,cigarette butt and cigarette ash were determined by atomic fluorescence spectrometry and graphite furnace atomic absorption spectrometry,and the volatile quantity was calculated in the course of smoking.The volatility of As and Pb in cigarette are low and they can be absorbed through cigarette butt and filter tip in the course of smoking,which has no harm to the active and passive smokers.However,volatile quantity of Hg and Cd are very higher and their absorption capacity in filter tip are very lower, which may have some harm to active and passive smokers.