Separation and determination of the difficult-to-measure radionuclide .sup.99Tc in radioactive wastes from nuclear power plants by using extraction chromatography and radiometric techniques

Separation and determination of the difficult-to-measure radionuclide .sup.99Tc in radioactive wastes from nuclear power plants by using extraction chromatography and radiometric techniques

A radiochemical separation and purification of .sup.99Tc is proposed for radioactive wastes from Brazilian nuclear power plants. The method uses anion exchange and extraction chromatography employing a TEVA resin. The radiometric determination was performed by liquid scintillation counting using a Q...

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Veröffentlicht in:Journal of radioanalytical and nuclear chemistry 2016-02, Vol.307 (2), p.1453
Hauptverfasser: Temba, Eliane S. C, Reis, Aluisio S, Kastner, Geraldo F, Monteiro, Roberto P. G, Moreira, Rubens M
Format: Artikel
Sprache:eng
Schlagworte:
Chemical properties
Chromatography
Measurement
Methods
Nuclear energy
Nuclear power plants
Radioactive wastes
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Zusammenfassung:A radiochemical separation and purification of .sup.99Tc is proposed for radioactive wastes from Brazilian nuclear power plants. The method uses anion exchange and extraction chromatography employing a TEVA resin. The radiometric determination was performed by liquid scintillation counting using a Quantulus 1220 spectrometer. Rhenium is used as a yield monitor and the chemical recovery was in the range of 70-90 %. The limit of detection, L.sub.d, obtained was 3.15 Bq L.sup.-1.
ISSN:0236-5731
DOI:10.1007/s10967-015-4359-z