Sorption and desorption of radiocesium on calcareous soil and its solid components

The purpose of this work was to label polyclonal antibodies with^99mTc such as photoactivated IgG and to check the radiochemical and biological behavior of the labeled product. Experiments were carried out to found the formulation of optimal binding of^99mTc to polyclonal IgG. In addition animal studies in normal mice and in mice bearing a promoted inflammation foci were performed. The labeled product was analyzed by size-exclusion HPLC and ITLC. Higher amount than 23μg of tin per 500μg of protein gave between 87% and 93% labeling. Protein concentrations between 1.5 and 5 mg/ml gave 90% labeling yields.