Abstract
ABSTRACT A method is described which allows the separate sampling and analysis of gaseous and particulate nicotine with a denuder-filter combination. Recovery rates of 101.6 ± 3.6% are found for a denuder coated with benzenesulfonic acid. Particulate nicotine can be sampled with glass-fiber filters which are also impregnated with benzenesulfonic acid. The extracts of the denuders and filters are quantified by gas chromatography (GC/FID) after reextraction from 0.1 N NaOH into CH2CI2. A determination limit of 5 ng (abs.) is reached by use of n-hexadecane as an internal standard. This sampling system is interesting especially for the determination of semi-volatile compounds, such as nicotine, the distribution of which affects its efficiency in smoking. The different distribution of nicotine between the gas and particle phase in the presence of various additives was examined in model test systems. These may give evidence on the behavior of nicotine in cigarette smoke, whose effects may influence its distribu...
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