The effects of solvent, supporting electrolyte and ligand on reduction and complexation of technetium (Tc)

The results of an attempt to elucidate some of the fundamental processes involved in Tc reduction and complexation and to apply those concepts to determine the role of water, are reported. Polarography was chosen as an analytical tool because it permits precise control of the conditions of the reduction process, especially the reduction potential. Polarographic analysis also reveals directly the formation of a complex of the reduced Tc and permits determination of both the Tc oxidation state and the molar ratio of ligand to metal. The ligand used to study the Tc reduction and complexation process was 8-hydroxyquinoline (oxine)