Determination of uranium and plutonium in plutonium based fuels by sequential amperometric titration

Electrochemistry of actinides on reduced graphene oxide: craving for the simultaneous voltammetric determination of uranium and plutonium in nuclear fuel

“…Redox titration methods, employing a visual indicator or electrometric end point detection, are widely used for the determination of uranium and plutonium independently in the uranium-plutonium mixed oxides. [11][12][13][14][15][16][17][18][19] The major issue in the quantitative redox titration of a mixed uranium-plutonium solution is the interfering redox reaction between U(IV) and Pu(IV) in acidic solutions. Following discussed redox titrimetric methodologies have been strategically developed to separately determine U and Pu avoiding their mutual interference.…”

“…Therefore, a couple of alternative redox titrimetric methods have been developed in our laboratory for biamperometric determination of U and Pu. 12,14,16 However, those redox titrimetric methods mostly require separate exercise and reagents for the determination of U and Pu in the same sample.…”

New Greener and Sustainable Methodology for Direct Sequestering and Analysis of Uranium Using a Maline Supramolecular Scaffold and Mechanistic Understanding through Speciation and Interaction Studies

“…The precision (0.140%) of the present U analysis methodology is better than that of (0.2%) the biamperometry method. 48,49 Also, no additives, viz., acids, redox reagents, and electrode modifiers were used during analysis of U using Maline. Hence, the present study suggests a direct, fast, and simple quantitative analysis methodology for the routine analysis of U in nuclear material and forensic samples.…”

“…due to the addition of redox titrants during the analysis, time-consuming hazardous acid dissolution, and the laborious recovery of U from analytical waste. 48,49 Several studies were further devoted to modification of electrode surfaces for U analysis as an alternate choice but its preparation involves a complex procedure and is expensive, tedious, and time-consuming, which restricts its application in routine sample analysis. 50,51 Few studies 52−54 have reported the DESs as designer solvents for green analytical chemistry since these solvents are like liquid crystals in which the analyte molecules are fixed in the crystal.…”

Template‐free Electrosynthesis of Platinum Nano‐Cauliflowers for Catalysing Electron Transfer Reaction of Plutonium

“…Plutonium (Pu) is one of the important artificial elements useful for atomic energy, which is an established non-conventional source of energy. Therefore, accurate and precise determination of Pu in metal oxide/carbide fuels is a desirable job to assure the performance of nuclear fuels inside nuclear reactors and electrochemistry (such as coulometry, biamperometry, etc in sulphuric acid solutions) is trying to serve this purpose [16][17][18]. The heterogeneous electron transfer reaction of Pu(IV)/Pu (III) is found to be an electrochemically quasi-reversible redox reaction, which greatly depends on the nature of the electrode materials.…”