期刊
JOURNAL OF HAZARDOUS MATERIALS
卷 168, 期 1, 页码 416-423出版社
ELSEVIER
DOI: 10.1016/j.jhazmat.2009.02.057
关键词
Uranium minerals; Uranyl ion; Uranium mine; Micro-Raman spectroscopy; SEM/EDX
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 860 cm(-1) 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. (C) 2009 Elsevier B.V. All rights reserved.
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