Determination of trace amounts of uranium in plutonium oxide by wavelength dispersive X-ray fluorescence spectrometry

Atomic spectrometry update: review of advances in the analysis of metals, chemicals and materials

“…Wavelength dispersive XRF was applied by Pandey et al for non-destructive trace U determination in plutonium oxide. 187 Following pelletisation of PuO 2 powder, the U La X-ray was used as the analytical line, which provided a reproducibility of better than 5% at U concentrations of 200-1000 mg g À1 . There was good agreement between results from WDXRF and ICP-OES.…”

Atomic spectrometry update: review of advances in the analysis of metals, chemicals and materials

“…Pandey et al employed WDXRF to determine trace U in plutonium dioxide powders. 190 Following pelletisation of the samples, U was measured at concentrations ranging from 100–1000 μg g −1 , with a reproducibility of <5% RSD. In addition, good agreement between obtained using WDXRF and ICP-OES was also achieved.…”

DNAzyme recognition triggered cascade signal amplification for rapid and highly sensitive visual detection of uranyl ions

“…4 Thus, it is of great significance to monitor uranyl ion (UO 2 2+ ) levels in environmental water. Currently, although extensive techniques including atomic emission spectrometry, 5 X-ray fluorescence spectroscopy, 6 mass spectrometry 7,8 and Raman spectroscopy 9,10 have been applied in uranium analysis, there is an urgent need to construct more convenient, inexpensive and simple on-site assays for environmental monitoring, without the requirement for laborious operation and sophisticated and expensive instruments. Nowadays, the colorimetric method has attracted lots of interests because it offers a straightforward visualized way to detect analytes by the naked eye.…”