Title:
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Dimethylglyoxime modified screen-printed electrodes for nickel determination
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Author:
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Rosal, Miguel; Cetó, Xavier; Serrano i Plana, Núria; Ariño Blasco, Cristina; Esteban i Cortada, Miquel; Díaz Cruz, José Manuel
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Other authors:
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Universitat de Barcelona |
Abstract:
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This work reports the development of a dimethylglyoxime (DMG) modified sensor in which the complexing agent was successfully immobilized by drop-casting onto a screen-printed carbon electrode support (SPCE). The experimental conditions for the preparation of the DMG-SPCE sensor were optimized by means of a D-optimal design, and the built sensors were analytically evaluated for the determination of Ni(II) by adsorptive stripping voltammetry (AdSV). Its analytical performance suggests its suitability for the determination of Ni(II)-ions by AdSV at concentration levels of μg L-1 (LOD of 2.3 μg L-1, linear range from 7.6 to 200 μg L-1). Finally, the applicability of the developed sensor was assessed by the determination of trace levels of Ni(II) by AdSV in a wastewater reference material with a very high reproducibility (0.005 %) and good trueness (0.1 %). |
Subject(s):
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-Níquel -Voltametria -Anàlisi electroquímica -Electroquímica -Nickel -Voltammetry -Electrochemical analysis -Electrochemistry |
Rights:
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cc-by-nc-nd (c) Elsevier B.V., 2019
info:eu-repo/semantics/embargoedAccess
http://creativecommons.org/licenses/by-nc-nd/3.0/es |
Document type:
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Article Article - Accepted version |
Published by:
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Elsevier B.V.
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