Combined SEM/EDX and micro-Raman spectroscopy analysis of uranium minerals from a former uranium mine.
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.
Stefaniak
Elzbieta A
EA
Department of Chemistry, University of Antwerp, Antwerp, Belgium. elzbieta.stefaniak@ua.ac.be
Alsecz
Anita
A
Frost
Ray
R
Máthé
Zoltán
Z
Sajó
István E
IE
Török
Szabina
S
Worobiec
Anna
A
Van Grieken
René
R