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Adsorption of Db and its homologues Nb and Ta, and the pseudo-homologue Pa on anion-exchange resin in HF solution
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Kazuaki Tsukada
Veröffentlicht/Copyright:
25. September 2009
Abstract
Anion-exchange chromatography of element 105, dubnium (Db), produced in the 248Cm( 19F, 5n) 262Db reaction is investigated together with the homologues Nb and Ta, and the pseudo-homologue Pa in 13.9 M hydrofluoric acid (HF) solution. The distribution coefficient (Kd) of Db on an anion-exchange resin is successfully determined by running cycles of 1702 chromatographic column separations. The result clearly indicates that the adsorption of Db on the resin is significantly different from that of the homologues and that the adsorption of anionic fluoro complexes of these elements decreases in the sequence of Ta≈ Nb>Db≥Pa.
Keywords: Dubnium (Db); Anion-exchange chromatography; Hydrofluoric acid; Fluoride complexation; Atom-at-a-time chemistry
Published Online: 2009-09-25
Published in Print: 2009-02
© by Oldenbourg Wissenschaftsverlag, München, Germany
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Schlagwörter für diesen Artikel
Dubnium (Db);
Anion-exchange chromatography;
Hydrofluoric acid;
Fluoride complexation;
Atom-at-a-time chemistry
Artikel in diesem Heft
- Measurement of thermal neutron cross section and resonance integral for the 165Ho(n, γ)166gHo reaction
- Excitation functions of proton induced reactions on natural selenium up to 62 MeV
- Excitation function for the 74Se(18O,p3n)88gNb reaction
- Adsorption of Db and its homologues Nb and Ta, and the pseudo-homologue Pa on anion-exchange resin in HF solution
- Plutonium(III,IV,VI) speciation in Gorleben groundwater using XAFS
- Neptunium(V) sorption onto gibbsite
- Supercritical fluid extraction of thorium from tissue paper matrix employing β-diketones
- Targetry and radiochemistry for no-carrier-added production of 109Cd
- Assessment of elemental pollution in soil of Islamabad city using instrumental neutron activation analysis and atomic absorption spectrometry techniques
