Abstract
Absorption spectroscopic properties for various Pu oxidation states in nitric and hydrochloric acid solutions were investigated with UV-Visible spectrophotometry. As a result, it was confirmed that the intensities of the major absorption peaks had a tendency to decrease for Pu(III), Pu(IV) and Pu(VI) in HCl and HNO3 media, and the major peak positions were shifted to longer or shorter wavelengths depending on the complexforming abilities of Pu(III), Pu(IV) and Pu(VI) with the chloride or nitrate ion with increasing acid concentrations. The values of the wavelength and the molar absorptivity for the principal peaks of Pu(III), Pu(IV) and Pu(VI) in NHO3 and HCl solutions were similar to those reported in other works. The values of the molar absorptivity for the principal peaks of Pu(III), Pu(IV) and Pu(VI) in the HNO3 solution were a little higher than those in the HCl solution.
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Lee, M.H., Park, Y.J. & Kim, W.H. Absorption spectroscopic properties for Pu(III, IV and VI) in nitric and hydrochloric acid media. J Radioanal Nucl Chem 273, 375–382 (2007). https://doi.org/10.1007/s10967-007-6848-1
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DOI: https://doi.org/10.1007/s10967-007-6848-1