[Analysis of polycyclic aromatic hydrocarbons in lipid-containing biological matrices--study of contamination of breast milk by benzo(a)pyrene along transit routes through Tyrol].

41 samples of human milk from the region of Tyrol were investigated with regard to benzo(a)pyrene content. A complicated analytical preparatory method had to be worked out. The percentage recovery of benzo(a)pyrene was 85-90. Analysis was carried out by means of capillary gas chromatography and flame ionization detection or mass spectrometry. The limit of benzo(a)pyrene detection is 0.1-1 microgram/kg (single ion monitoring). None of the investigated samples of milk showed the presence of benzo(a)pyrene.