Título:
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Simultaneous titration of ternary mixtures of Pb(II), Cd(II) and Cu(II) with potentiometric electronic tongue detection
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Autor/a:
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Wilson Massó, Deivy; Alegret, Salvador,; Valle Zafra, Manuel del
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Abstract:
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An automatic titration method is reported to resolve ternary mixtures of transition metals (Pb²⁺,Cd²⁺ and Cu²⁺) employing electronic tongue detection and a reduced number of pre-defined additions of EDTA titrant. Sensors used were PVC membrane selective electrodes with generic response to heavy-metals, plus an artificial neural network response model. Detection limits obtained were ca. 1 mg L¯¹ for the three target ions and reproducibilities 3.0 % for Pb²⁺, 4.1 % for Cd²⁺ and 5.2 % for Cu²⁺. The system was applied to contaminated soil samples and high accuracy was obtained for the determination of Pb²⁺. In the determination Cd²⁺ and Cu²⁺,sample matrix showed a significant effect. |
Materia(s):
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-Electronic tongue -Simultaneous titration -Sensor array -Transition metals -Ion selective electrodes -Artificial neural networks |
Derechos:
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open access
Tots els drets reservats.
https://rightsstatements.org/vocab/InC/1.0/ |
Tipo de documento:
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Article |
Editor:
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Compartir:
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Uri:
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https://ddd.uab.cat/record/144741
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