Combined SEM/EDX and micro-Raman spectroscopy analysis of uranium minerals from a former uranium mine.
Combined SEM/EDX and micro-Raman spectroscopy analysis of uranium minerals from a former uranium mine.
复制标题
DOI：
10.1016/j.jhazmat.2009.02.057
复制
发表时间：
2009-08
影响因子：
13.6
通讯作者：
E. Stefaniak;Anita Alsecz;R. Frost;Z. Máthé;I. Sajó;S. Török;A. Worobiec;R. Van Grieken
中科院分区：
文献类型：
--
作者：
E. Stefaniak;Anita Alsecz;R. Frost;Z. Máthé;I. Sajó;S. Török;A. Worobiec;R. Van Grieken
通过扫描电子显微镜 (SEM/EDX) 和显微拉曼光谱 (MRS) 两种显微技术对在匈牙利佩奇 (Pecs) 废弃铀矿中收集的次生铀矿物样品进行了研究。它们被用来定位富铀颗粒并识别铀化合物的化学形态和氧化态。最丰富的矿物是钾和/或钠铀酰硫酸盐（拉链石族）。 U(VI) 也以在 860cm−1 处显示出强烈拉曼散射的形式存在，这可归因于三氧化铀。这项研究展示了显微拉曼光谱在单个颗粒水平上鉴定铀酰矿物种类的成功应用。
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 860cm−1which 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.