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Issue 11, 2015
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Determination of methiocarb pesticide using differential pulse voltammetry with a boron-doped diamond electrode

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Abstract

In this article, a simple and rapid method is described for voltammetric determination of methiocarb (MTC, a pesticide of the carbamate type). Direct oxidation of MTC at a highly positive potential of about +1.4 V vs. Ag/AgCl was found to be feasible, thanks to the excellent performance of the working boron-doped diamond electrode in combination with the differential pulse voltammetric ramp. After optimisation of important parameters, the signal of MTC could be calibrated in an interval of 1–55 μg mL−1 MTC, when offering a detection limit (3σ) of ca. 0.15 μg mL−1 MTC. The practical applicability of the method has been demonstrated on analyses of a commercial pesticide, either with respect to the total content of MTC or as its gradual and time-controlled dissolution in the model sample of the natural aquatic system.

Graphical abstract: Determination of methiocarb pesticide using differential pulse voltammetry with a boron-doped diamond electrode

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Publication details

The article was received on 14 Apr 2015, accepted on 29 Apr 2015 and first published on 29 Apr 2015


Article type: Paper
DOI: 10.1039/C5AY00979K
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Anal. Methods, 2015,7, 4671-4677
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    Determination of methiocarb pesticide using differential pulse voltammetry with a boron-doped diamond electrode

    J. Chýlková, M. Tomášková, I. Švancara, L. Janíková and R. Šelešovská, Anal. Methods, 2015, 7, 4671
    DOI: 10.1039/C5AY00979K

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