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Article Dans Une Revue Analytical Letters Année : 2018

Electrochemical Determination of Cadmium, Lead, and Nickel Using a Polyphenol-Polyvinyl Chloride – Boron-Doped Diamond Electrode

Ali Zazoua
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Nawal Khedimallah
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Résumé

Boron-doped diamond electrode surfaces were modified by a polyphenol-polyvinyl chloride membrane. The polyphenols were extracted from the skin of acorns, the fruit of the oak tree. The polymer film was applied on the boron-doped diamond electrode surface by solvent evaporation. The resulting polyphenol-polyvinyl chloride- boron-doped diamond electrode was used as a sensor for cadmium, lead, and nickel. The synergy between the chemically modified surfaces and the electrochemical performances of the boron-doped diamond microcell electrode were examined by differential pulse anodic stripping voltammetry at nanomolar concentrations of the three metal ions. The modified electrode provided a stable, sensitive, and selective response to cadmium, lead(II), and nickel(II) ions. The resulting detection limits were 0.0221, 0.25, and 0.00424 nmole L−1, respectively.
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hal-01580478 , version 1 (01-09-2017)

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Ali Zazoua, Nawal Khedimallah, Nicole Jaffrezic-Renault. Electrochemical Determination of Cadmium, Lead, and Nickel Using a Polyphenol-Polyvinyl Chloride – Boron-Doped Diamond Electrode. Analytical Letters, 2018, 51 (3), pp.336-347. ⟨10.1080/00032719.2017.1310879⟩. ⟨hal-01580478⟩
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