US EPA

2202247 

Technical Report 

Determination of fat-soluble chlorinated compounds in fish 

Lunde, G; Baumannofstad, E 

1976 

PESTAB/77/0196 

Anal 

8 references 

395-399; 1976 

PESTAB. The level of chlorinated non-polar compounds in samples of sprat (Clupea sprattus) has been determined. The total amounts of chlorine, bromine and iodine in the lipid phase were determined by neutron activation analysis prior to and after treatment of the lipid phase with concentrated sulfuric acid. In sprat samples from a contaminated area the following chlorinated hydrocarbons have been identified and quantified by means of gas chromatography and mass spectrometry: pentachlorobenzene, hexachlorobenzene, heptachlorostyrene and octachlorostyrene. In addition, the following compounds have been detected by gas chromatography using standards: dichlorobenzene, trichlorobenzene, tetrachlorobenzene and polychlorinated biphenyls. A gradual reduction of the level of individual components and total level of chemically persistent chlorinated hydrocarbons in the samples is observed with increasing distance from the source of contamination (Frierfjorden). The same tendency is not seen for PCB. It has been found that highly chlorinated compounds are distinctly enriched in the sprat oil relative to compounds with lower contents of chlorine. (Author abstract by permission)