Abstract
Extraction of pertechnetate with bicyclic guanidinium compounds has been studied in the KTcO4-buffer-H2O/ligand-trichloromethane system. Extraction data of guanidinium ligands have been compared with trialkylmethylammonium (Aliquat 336), tetraphenylphosphonium and tetraphenylarsonium chloride. The lipophilicity of extractants investigated was determined by RP-HPLC. The efficiency of pertechnetate extraction correlates with the lipophilicity of the guanidinium compounds. 1:1 complex formation in the organic phase was observed. The influence of hydroxide, chloride and bicarbonate on the pertechnetate extraction has been investigated. Pertechnetate is extracted with great preference over OH−, Cl− and HCO3 −, ions.
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Stephan, H., Berger, R., Spies, H. et al. Efficient phase transfer of pertechnetate with bicyclic guanidinium compounds. J Radioanal Nucl Chem 242, 399–403 (1999). https://doi.org/10.1007/BF02345569
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DOI: https://doi.org/10.1007/BF02345569