Comparison of fluorescence-enhancing reagents and optimization of laser fluorimetric technique for the determination of dissolved uranium
Results from tests aimed at optimizing an instrumental procedure for the direct and fast determination of uranium in solution by laser fluorescence are presented. A comparison of sample fluorescence measured using different fluorescence enhancing reagents was performed: sodium pyrophosphate, orthophosphoric acid, sulphuric acid and a commercially available fluorescence enhancer were tested
for the determination of uranium. From the experimental results, 0.01 M Na4P2O710H2O showed the best performance.
Effects of reagent pH, different matrices, different concentrations of dissolved Th, and sample volume were investigated. Applications of the improved procedure for the determination of uranium in samples arising from UO2-based high level nuclear waste dissolution studies are described.
KÜTAHYALI Caren;
COBOS Sabate Joaquin;
RONDINELLA Vincenzo;
2011-01-18
SPRINGER
JRC61299
0236-5731,
http://www.springerlink.com/content/39h6550233451154/,
https://publications.jrc.ec.europa.eu/repository/handle/JRC61299,
10.1007/s109670100832-x,
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