FIELD: ecological chemistry. SUBSTANCE: biological tissue, for example, hepatic one, is homogenized, dehydrated, extracted with hexane. The obtained extract is subjected to interaction with alkali along with column chromatographic purification, where silica gel impregnated with caustic soda is used as a sorbent. Moreover, column hydrocarbons release 50- 80 ml hexane. Released polycyclic aromatic hydrocarbons are identified and quantitatively detected due to high-performance liquid chromatography (HPLC). EFFECT: higher efficiency. 2 tbl, 3 ex
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