Original scientific paper
Determination of the atmospheric 1,12-benzperylene, 1,2-benzpyrene and the carcinogen 3,4-benzpyrene by the ring oven method
Mira Cigula
; Škola narodnog zdravlja »Andrija Štampar« Medicinskog fakulteta Sveučilišta u Zagrebu
Mirka Fugaš
; Institut za medicinska istraživanja i medicinu rada JAZU u Zagrebu
F. Valić
; Škola narodnog zdravlja »Andrija Štampar« Medicinskog fakulteta Sveučilišta u Zagrebu, Zagreb
Abstract
A method for the semiquantitative determination of 1,12-benzperylene, 1,2-benzpyrene and the most important atmospheric carcinogen 3,4-benzpyrene was developed by using the ring oven technique. Pure polycyclic aromatic hydrocarbons (3,4-benzpyrene, 1,2-benzpyrene, 1,12-benzperylene, perylene, 1,2-benzanthracene, pyrene, fluoranthene), as well as the mixtures of these hydrocarbons in outdoor smoke samples can be washed into the ring by cyclohexane. The blue-green fluorescent rings obtained are visually compared with the standard quinine sulphate rings that give the same fluorescence intensity under 366 nm primary ultraviolet radiation. The fluorescence intensity of 3.4-benzpyrene, 1,2-benzpyrene and 1,12-benzperylene adsorbed on paper is so much higher than the intensity of other analysed polycyclic aromatic hydrocarbons in concentrations typical of urban air that the share of the latter can be neglected. Thus a preliminary determination of the average relationship between the concentrations of 3,4-benzpyrene, 1,2-benzpyrene, and 1,12 benzperylene in a certain area may allow the estimation of the concentration of the most important atmospheric carcinogen 3,4-benzpyrene.
Keywords
Hrčak ID:
168664
URI
Publication date:
15.12.1972.
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