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

Results of an inter-laboratory round-robin study of the application of time-resolved emission spectroscopy (TRES) to the speciation of uranium(VI) in aqueous media are presented. The round-robin study involved 13 independent laboratories, using various instrumentation and data analysis methods. Samp...

Full description

Saved in:
Bibliographic Details
Published inApplied spectroscopy Vol. 57; no. 8; p. 1027
Main Authors Billard, Isabelle, Ansoborlo, Eric, Apperson, Kathleen, Arpigny, Sylvie, Azenha, M Emilia, Birch, David, Bros, Pascal, Burrows, Hugh D, Choppin, Gregory, Couston, Laurent, Dubois, Veronique, Fanghänel, Thomas, Geipel, Gerhard, Hubert, Solange, Kim, Jae I, Kimura, Takaumi, Klenze, Reinhardt, Kronenberg, Andreas, Kumke, Michael, Lagarde, Gerard, Lamarque, Gerard, Lis, Stefan, Madic, Charles, Meinrath, Gunther, Moulin, Christophe, Nagaishi, Ryuji, Parker, David, Plancque, Gabriel, Scherbaum, Franz, Simoni, Eric, Sinkov, Sergei, Viallesoubranne, Carole
Format Journal Article
LanguageEnglish
Published United States 01.08.2003
Subjects
Chemistry Techniques, Analytical - standards
International Cooperation
Laboratories - standards
Quality Control
Reproducibility of Results
Spectrum Analysis - standards
Time Factors
Uranium - analysis
Uranium - chemistry
Water
Online AccessGet more information

Cover

More Information
Summary:Results of an inter-laboratory round-robin study of the application of time-resolved emission spectroscopy (TRES) to the speciation 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 UO2(2+)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.
ISSN:0003-7028
DOI:10.1366/000370203322259002