Anodic stripping voltammetric determination of uranium at a thin palladium film-aluminum electrode: Analysis of some uranium mineral ores
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M. H. Pournaghi-Azar
Abstract
In the present work, a rapid deposition anodic stripping voltammetry (ASV) for determination of uranium is presented. For this purpose, the uranyl hexacyanoferrate (K2UO2[Fe(CN)6]) is deposited electrochemically on a thin palladium-aluminum electrode (Pd-Al) from a UO22+ solution in the presence of K3Fe(CN)6. Then, the well stable (K2UO2[Fe(CN)6]) on the electrode was stripped by anodic differential pulse voltammetry for measuring the UO22+ ion concentration. The effect of operational parameters, including: concentration of K3Fe(CN)6, solution pH, deposition potential, and deposition time were studied. In optimum conditions, the calibration graph was linear in the concentration range 10−5−7×10−4 mol L−1 with a detection limit of 6.2×10−6 mol L−1. The influence of some concomitant ions in K2UO2[Fe(CN)6] formation was investigated. The proposed method was used for the rapid determination of uranium in some uranium mineral ores.
© by Oldenbourg Wissenschaftsverlag, München, Germany
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Artikel in diesem Heft
- Measurement of excitation functions for production of cerium radioisotopes by deuteron induced reactions on natural cerium for nanobioscience applications
- Demonstration of the LUCA process for the separation of americium(III) from curium(III), californium(III), and lanthanides(III) in acidic solution using a synergistic mixture of bis(chlorophenyl)dithiophosphinic acid and tris(2-ethylhexyl)phosphate
- Anodic stripping voltammetric determination of uranium at a thin palladium film-aluminum electrode: Analysis of some uranium mineral ores
- N, N, N′, N′-tetra(2-ethylhexyl) thiodiglycolamide T(2EH)TDGA: A novel ligand for the extraction of palladium from high level liquid waste (HLLW)
- Sorption kinetics of cesium on ZrO2 and ZrO2-SiO2-TiO2 microspheres
- Comparison of two sequential extraction protocols for fractionation of natural radionuclides in soil samples
- Activity release from the damaged spent VVER-fuel during long-term wet storage
- Biological studies of samarium-153 bleomycin complex in human breast cancer murine xenografts for therapeutic applications
- Effects of gamma radiation on electrochemical properties of ionic liquids
