Abstract
The results of investigation of the regularity of 188Re binding with KNaHEDP and hydrolysis of the complex compound (188Re-KNaHEDP) have shown that its quality depends to a considerable extent on the reaction conditions. Concentrations of a reducing agent (Sn2+) and stable rhenium in the 188Re eluate, as the carrier, influence essentially the rate of formation and stability of 188Re complex with KNaHEDP. The results of the kinetic investigations of the 188Re-KNaHEDP complex formation prove that the reaction character bears a direct relationship to the concentrations of the complexing agent (Re) and the reducer (Sn2+).
The higher ratio of Re7+: Sn2+ concentrations, the more effectively 188Re binds with KNaHEDP. The obtained results prove that for 188Re binding with KNaHEDP with the efficiency not less than 95 % the optimum concentration of stable rhenium in the reaction mixture is 0.54×10−6 mol·ml−1 (0.1 mgMl−1) and the ratio of Re7+: Sn2+ concentrations should not be lower than 10: 1.
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Petriev, V.M., Afanasieva, E.L., Skvortsov, V.G. et al. Influence of the rhenium carrier in eluate of Re-188 on its binding with potassium-sodium salt of hydroxyethylidene biphosphonic acid. Czech J Phys 56 (Suppl 4), D731–D736 (2006). https://doi.org/10.1007/s10582-006-0572-x
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DOI: https://doi.org/10.1007/s10582-006-0572-x