Abstract
The determination of Cd in ambient air, associated with tobacco smoke, has been carried out by electrostatic precipitation of Cd directly in a graphite tube, which was subsequently used as an atomizer in electrothermal atomization atomic absorption spectroscopy (ET-AAS). It is shown that graphite tube permanently modified with Ir allows carrying out pyrolysis of collected samples at 1000°C, leading to minimization of the blank. The combination of electrostatic precipitation of Cd from ambient air into the graphite tube with high efficiency of Cd determination by ET-AAS allows to trace Cd in ambient air for 25 min after the smoking a cigarette The limit of detection (LOD) of Cd determination was found to be 0.2 ng/m 3 . The results of investigations confirm the danger of passive smoking due to the presence of Cd in smoking areas.
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