Efficient phase transfer of pertechnetate with bicyclic guanidinium compounds View Full Text


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Article Info

DATE

1999-11

AUTHORS

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

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. More... »

PAGES

399-403

References to SciGraph publications

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  • 1963-07. Pertechnic Acid : an Aperiodic Variation in Acid Strength in NATURE
  • 1962-01. Die Verteilung der Tetraphenylarsoniumverbindungen anorganischer Anionen zwischen wäßrigen Lösungen und Chloroform in ANALYTICAL AND BIOANALYTICAL CHEMISTRY
  • 1995-11. Solvent extraction of technetium in urine with TBP in JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
  • 1996-02. Solvent extraction of technetium(VII) by primary amine in heptane solution from aqueous alkaline solution in JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
  • 1986-03. Extraction of technetium by crown ethers and cryptands in JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
  • 1995-03. Mechanism of the solvent extraction of pertechnetate with tetraphenylarsonium chloride in JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
  • Identifiers

    URI

    http://scigraph.springernature.com/pub.10.1007/bf02345569

    DOI

    http://dx.doi.org/10.1007/bf02345569

    DIMENSIONS

    https://app.dimensions.ai/details/publication/pub.1022168271


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