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Open AccessFeature PaperArticle

Plutonium (IV) Quantification in Technologically Relevant Media Using Potentiometric Sensor Array

1
Institute of Chemistry, St. Petersburg State University, Peterhof, Universitetsky prospect, 26, 198504 Saint-Petersburg, Russia
2
Khlopin Radium Institute, 2 Murinsky prospect, 28, 194021 Saint-Petersburg, Russia
3
Laboratory of Artificial Sensory Systems, ITMO University, Kronverksky prospect, 49, 197101 Saint-Petersburg, Russia
*
Author to whom correspondence should be addressed.
Sensors 2020, 20(6), 1604; https://doi.org/10.3390/s20061604
Received: 5 February 2020 / Revised: 3 March 2020 / Accepted: 10 March 2020 / Published: 13 March 2020
(This article belongs to the Special Issue Multisensor Systems and Signal Processing in Analytical Chemistry)
The quantification of plutonium in technological streams during spent nuclear fuel (SNF) reprocessing is an important practical task that has to be solved to ensure the safety of the process. Currently applied methods are tedious, time-consuming and can hardly be implemented in on-line mode. A fast and simple quantitative plutonium (IV) analysis using a potentiometric sensor array based on extracting agents is suggested in this study. The response of the set of specially designed PVC-plasticized membrane sensors can be related to plutonium content in solutions simulating real SNF-reprocessing media through multivariate regression modeling, providing 30% higher precision of plutonium quantification than optical spectroscopy. View Full-Text
Keywords: plutonium; potentiometric sensors; spent nuclear fuel; sensor array; PUREX plutonium; potentiometric sensors; spent nuclear fuel; sensor array; PUREX
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Savosina, J.; Agafonova-Moroz, M.; Yaroshenko, I.; Ashina, J.; Babain, V.; Lumpov, A.; Legin, A.; Kirsanov, D. Plutonium (IV) Quantification in Technologically Relevant Media Using Potentiometric Sensor Array. Sensors 2020, 20, 1604.

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