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Speciation of An(IV) (Pu, Np, U and Th) in citrate media

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Veröffentlicht/Copyright: 25. September 2009
rca - Radiochimica Acta
Aus der Zeitschrift rca - Radiochimica Acta Band 96 Heft 3

Summary

The acquisition of additional data concerning actinide decorporation is planned under the French nuclear and environmental toxicology program.

Citric acid is a fundamental biological constituent found at relatively high concentrations in blood plasma and is involved in many biological processes.

Spectrophotometry was the primary method used to determine the speciation of An(IV)-citrate systems (Th, U, Np, Pu). Complexation phenomena were identified, especially the formation of complexes with 1:1 and 1:2 stoichiometries. The corresponding conditional constants were calculated according to the experimental conditions. Depending on the acid-base form of the ligand (H2Cit−, HCit2− or Cit3−) the apparent stability constants were also calculated and compared for various tetravalent actinides.

Keywords: Plutonium; Neptunium; Uranium; Thorium; Citric acid; Complexation
:
Received: 2007-September-17
Accepted: 2007-October-25
Published Online: 2009-09-25
Published in Print: 2008-03

© Oldenbourg Wissenschaftsverlag

Artikel in diesem Heft

  1. Hexafluoro complex of rutherfordium in mixed HF/HNO3 solutions
  2. About low oxidation states, hydration and covalence properties of f elements
  3. Speciation of An(IV) (Pu, Np, U and Th) in citrate media
  4. Solvent extraction of americium and europium ions by amide-derivatized polyethers from picric acid aqueous solution
  5. Effect of humic acid, fulvic acid, pH and temperature on the sorption-desorption of Th(IV) on attapulgite
  6. Preparation, quality control and biodistribution studies of [67Ga]-DOTA-anti-CD20
  7. Phosphinimines as selective extractants for Tc-99 pertechnetate
  8. 10.1524/ract.2008.1513
  9. 10.1524/ract.2008.1517
  10. 10.1524/ract.2008.1519
  11. 10.1524/ract.2008.1507
  12. 10.1524/ract.2008.1514
  13. 10.1524/ract.2008.1516
  14. 10.1524/ract.2008.1515
  15. 10.1524/ract.2008.1520
  16. 10.1524/ract.2008.1518
https://doi.org/10.1524/ract.2008.1476
Schlagwörter für diesen Artikel
Plutonium; Neptunium; Uranium; Thorium; Citric acid; Complexation

Artikel in diesem Heft

  1. Hexafluoro complex of rutherfordium in mixed HF/HNO3 solutions
  2. About low oxidation states, hydration and covalence properties of f elements
  3. Speciation of An(IV) (Pu, Np, U and Th) in citrate media
  4. Solvent extraction of americium and europium ions by amide-derivatized polyethers from picric acid aqueous solution
  5. Effect of humic acid, fulvic acid, pH and temperature on the sorption-desorption of Th(IV) on attapulgite
  6. Preparation, quality control and biodistribution studies of [67Ga]-DOTA-anti-CD20
  7. Phosphinimines as selective extractants for Tc-99 pertechnetate
  8. 10.1524/ract.2008.1513
  9. 10.1524/ract.2008.1517
  10. 10.1524/ract.2008.1519
  11. 10.1524/ract.2008.1507
  12. 10.1524/ract.2008.1514
  13. 10.1524/ract.2008.1516
  14. 10.1524/ract.2008.1515
  15. 10.1524/ract.2008.1520
  16. 10.1524/ract.2008.1518
Heruntergeladen am 15.5.2026 von https://www.degruyterbrill.com/document/doi/10.1524/ract.2008.1476/html?lang=de
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