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URN: urn:nbn:de:kobv:517-opus-12318
URL: http://opus.kobv.de/ubp/volltexte/2007/1231/

Billard, Isabelle ; Ansoborlo, Eric ; Apperson, Kathleen ; Arpigny, Sylvie ; Azenha, M. Emilia ; Birch, David ; Bros, Pascal ; Burrows, Hugh D. ; Choppin, Gregory ; Kumke, Michael

Aqueous solutions of Uranium(VI) as studied by time-resolved emission spectroscopy : a Round-Robin Test

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Kurzfassung in Englisch

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 UO22+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.

Freie Schlagwörter (Englisch): uranium (VI) , intercomparison , speciation

Collection: Universität Potsdam / Aufsätze (Pre- und Postprints) / Mathematisch-Naturwissenschaftliche Fakultät / Institut für Chemie / Physikalische Chemie

Institut: Institut für Chemie

DDC-Sachgruppe: Chemie

Dokumentart: c Postprint

Schriftenreihe: Postprints der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe, ISSN 1866-8372

Bandnummer: paper 005

Quelle: Applied Spectroscopy. - 57 (2003), 8, p. 1027 - 1038

Sprache: Englisch

Erstellungsjahr: 2003

Publikationsdatum: 26.01.2007

Bemerkung:
first published in:
Applied Spectroscopy. - 57 (2003), 8, p. 1027 - 1038
doi: 10.1366/000370203322259002

Ihr Kontakt für Fragen und Anregungen:
Universitätsbibliothek Potsdam