Aqueous solutions of uranium(VI) as studied by time-resolved emission spectroscopy: A round-robin test

Isabelle Billard*, Eric Ansoborlo, Kathleen Apperson, Sylvie Arpigny, M. Emilia Azenha, David Birch, Pascal Bros, Hugh D. Burrows, Gregory Choppin, Laurent Couston, Veronique Dubois, Thomas Fanghänel, Gerhard Geipel, Solange Hubert, Jae I. Kim, Takaumi Kimura, Reinhardt Klenze, Andreas Kronenberg, Michael Kumke, Gerard LagardeGerard Lamarque, Stefan Lis, Charles Madic, Gunther Meinrath, Christophe Moulin, Ryuji Nagaishi, David Parker, Gabriel Plancque, Franz Scherbaum, Eric Simoni, Sergei Sinkov, Carole Viallesoubranne

*Corresponding author for this work

Research output: Contribution to journalJournal articlepeer-review

44 Citations (Scopus)

Abstract

Results of an inter-laboratory round-robin study of the application of time-resolved emission spectroscopy (TRES) to the speclation of uranium(VI) in aqueous media are presented. The round-robin study involved 13 independent laboratories, using various instrumentation and data analysis methods. Samples were prepared based on appropriate speciation diagrams and, in general, were found to be chemically stable for at least six months. Four different types of aqueous uranyl solutions were studied: (1) acidic medium where UO 22+aq is the single emitting species, (2) uranyl in the presence of fluoride ions, (3) uranyl in the presence of sulfate ions, and (4) uranyl in aqueous solutions at different pH, promoting the formation of hydrolyzed species. Results between the laboratories are compared in terms of the number of decay components, luminescence lifetimes, and spectral band positions. The successes and limitations of TRES in uranyl analysis and speciation in aqueous solutions are discussed.

Original languageEnglish
Pages (from-to)1027-1038
Number of pages12
JournalApplied Spectroscopy
Volume57
Issue number8
DOIs
Publication statusPublished - Aug 2003

User-Defined Keywords

  • Intercomparison
  • Speciation
  • Uranium(VI)

Fingerprint

Dive into the research topics of 'Aqueous solutions of uranium(VI) as studied by time-resolved emission spectroscopy: A round-robin test'. Together they form a unique fingerprint.

Cite this