Extraction of Polycyclic Aromatic Hydrocarbons in Barn Owls ( Tyto Alba ) from Northwest Spain by SFE and HPLC-FL Analysis

Supercritical fluid extraction (SFE) and high-performance liquid chromatography-fluorescence detection (HPLC-FL) were used to determine concentration of anthracene, benzo[ a ]anthracene, benzo[ a ]pyrene, benzo[ b ]fluoranthene, benzo[ ghi ]perylene, benzo[ k ]fluoranthene, chrysene, fluoranthene, pyrene, and indeno[1,2,3- cd ]pyrene in six classes of tissue (heart, liver, intestine, muscle, lung, and kidney) of 11 barn owls from Galicia (northwest Spain). We have detected fluoranthene and pyrene in >40.0% of samples, anthracene in 35.4%, and benzo[ a ]anthracene in 12.3%. Mean concentrations were between 0.398 w g/kg dry weight for anthracene and 4.855 w g/kg dry weight for fluoranthene. Lung and intestine tissues were more polluted than the other tissues.

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