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