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Voltammetric determination of methidathion insecticide

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Abstract

An electroanalytical method has been developed for the determination of methidathion by squarewave voltammetry on a Nafion®-coated glassy carbon electrode in aqueous solutions with 0.05 M acetate buffer as a supporting electrolyte. The best voltammetric conditions were found to be pH 4.0, a preconcentration potential of 0.45 V, and a preconcentration time of 60 s. The experimental parameters, such as pH, film thickness, preconcentration potential, preconcentration time, and square-wave voltammetric parameters, were optimized. Using this method, the calibration curve is linear in the range 5 × 10−8−7 × 10−7 M with a detection limit (S/N = 3) of 30 nM.

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Authors and Affiliations

  1. Department of Chemistry, Faculty of Arts and Sciences, İnönü University, 44069, Malatya, Turkey

    G. Erdoğ;du

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  1. G. Erdoğ;du
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Erdoğ;du, G. Voltammetric determination of methidathion insecticide. J Anal Chem 61, 673–676 (2006). https://doi.org/10.1134/S1061934806070124

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  • DOI: https://doi.org/10.1134/S1061934806070124

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