Efficient phase transfer of pertechnetate with bicyclic guanidinium compounds

H. Stephan, R. Berger, H. Spies, B. Johannsen, F. P. Schmidtchen

Research output: Contribution to journalArticlepeer-review

14 Scopus citations

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.

Original languageEnglish
Pages (from-to)399-403
Number of pages5
JournalJournal of Radioanalytical and Nuclear Chemistry
Volume242
Issue number2
DOIs
StatePublished - 1999

Fingerprint

Dive into the research topics of 'Efficient phase transfer of pertechnetate with bicyclic guanidinium compounds'. Together they form a unique fingerprint.

Cite this