Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
581359 | Journal of Hazardous Materials | 2009 | 8 Pages |
Abstract
Samples of the secondary uranium minerals collected in the abandoned uranium mine at Pecs (Hungary) were investigated by two micro-techniques: scanning electron microscopy (SEM/EDX) and micro-Raman spectroscopy (MRS). They were applied to locate U-rich particles and identify the chemical form and oxidation state of the uranium compounds. The most abundant mineral was a K and/or Na uranyl sulphate (zippeite group). U(VI) was also present in the form showing intensive Raman scattering at 860Â cmâ1 which can be attributed to uranium trioxide. This research has shown the successful application of micro-Raman spectroscopy for the identification of uranyl mineral species on the level of individual particles.
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Authors
Elżbieta A. Stefaniak, Anita Alsecz, Ray Frost, Zoltán Máthé, István E. Sajó, Szabina Török, Anna Worobiec, René Van Grieken,