[Experimental toxocologic study of some trichlorobiphenyl isomers].

The authors, after having performed the preparation of a few pure trichlorobiphenyl isomers, proceeded with a preliminary toxicological study of the rat which should then facilitate study for a commerical product. The fixation level of these compounds is considerably higher in lipids and in the spleen than in the other organs. Urinary elimination is very low compared with faecal excretion; furthermore, chromatographic analysis makes it possible to shed light on phenolic products of transformation in the excreta, some of which it was possible to identify with hydroxylated trichlorobiphenyls synthesized in the laboratory.