Polycyclic aromatic hydrocarbons in petroleum products for medicinal and cosmetic uses--analytical procedure.


Two methods for extraction and determination of benzo[a]pyrene and other PAH in liquid and white soft paraffins, widely used for medicinal and cosmetic purposes, are compared. A method based on extraction by frontal elution chromatography, column and thin-layer chromatography and final spectrophotofluorometric determination gave the best results in the… (More)


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