Published 2017
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U(IV) fluorescence spectroscopy. A new speciation tool
- 1. Helmholtz-Zentrum Dresden-Rossendorf e.V., Dresden (Germany). Surface Processes
- 2. Helmholtz-Zentrum Dresden-Rossendorf e.V., Dresden (Germany). Inst. of Resource Ecology
Description
We combined absorption and fluorescence spectroscopy to study the speciation of U(IV) in solution in concentrations down to 10-6 M uranium. With our time-resolved laser-induced fluorescence setup we could determine the fluorescence decay time of U(IV) in perchloric as well as in chloric acid with 2.6 ± 0.3 ns at room temperature and 148.4 ± 6.5 ns at liquid nitrogen temperature. For the U(IV) sulfate system, we observed a bathochromic shift and a peak shape modification in the fluorescence spectra with increasing sulfate concentration in solution. Thus, the potential of U(IV) fluorescence for speciation analysis could be proven.
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Additional details
Publishing Information
- Imprint Title
- Annual report 2016. Institute of Resource Ecology
- Imprint Pagination
- 103 p.
- Journal Page Range
- p. 16
- ISSN
- 2191-8708
- Report number
- HZDR--079
INIS
- Country of Publication
- Germany
- Country of Input or Organization
- Germany
- INIS RN
- 48058084
- Subject category
- S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
- Descriptors DEI
- CHLORIC ACID; FLUORESCENCE SPECTROSCOPY; LASERS; PERCHLORIC ACID; URANIUM COMPOUNDS; URANIUM SULFATES
- Descriptors DEC
- ACTINIDE COMPOUNDS; CHLORINE COMPOUNDS; EMISSION SPECTROSCOPY; HALOGEN COMPOUNDS; HYDROGEN COMPOUNDS; INORGANIC ACIDS; INORGANIC COMPOUNDS; OXYGEN COMPOUNDS; SPECTROSCOPY; SULFATES; SULFUR COMPOUNDS; URANIUM COMPOUNDS