Zur Bestimmung,zum Vorkommen und zur Zusammensetzung von polycyclischen aromatischen Kohlenwasserstoffen in Ölen und Fetten

On the Occurrence, Determination and Composition of Polycyclic Aromatic Hydrocarbons in Crude Oils and Fats Various methods have been published regarding analytical determination of polycyclic aromatic hydrocarbons (PAH). In principle, all methods are composed of following steps: Enrichment, clean-up and quantitation. The authors prefer the caffein-complexation technique. They have been using this since many years for the routine PAH-analysis of fats and oils. This report contains the results of PAH determination in the most common crude oils used in Europe as well as the statistical trend of their contamination with “light” and “heavy” PAH's. Moreover, the PAH contamination of different oils according to their geographical origin is shown and possible sources of contamination are discussed. The role of Benzoa]pyrene as the “reference PAH” and its correlation with “heavy” PAH is subjected to a critical evaluation.