[Kinetics of the binding 14C-DDT-and haemolymph lipoproteins of Periplaneta americana (author's transl)].

A study of the kinetics of the complexation of the 14C-DDT and lipoproteins of the haemolymph of Periplaneta americana (L.) was made, the method employed was that described by WINTER et alii (7). It was found that the above complex was unstable when kept at low temperatures (5 degrees) for more than twenty four hours; the incorporation of 14C-DDT in the proteic fraction increased with temperature up to 42 degrees C, and at least 6 hours of incubation were necessary to bind the 14C-DDT to the lipoprotein.