Abstract.
Differential pulse and square wave voltammetric methods are proposed for the determination of the N-methylcarbamate insecticide Bendiocarb based on the oxidation of its hydrolysis product. A single peak (+ 0.7 V (pH 3.5)) is observed at the glassy carbon electrode. Linear relationships between the peak intensity and the concentration were obtained up to 5 µg/ml, with detection limits of 0.77 µg/ml for DPV and 0.44 µg/ml for SWV, respectively. The methods have been applied satisfactorily for the analysis of river water samples spiked with the pesticide by using the extraction with diethyl ether as preconcentration step. Concentration values as low as 0.11 µg/ml were determined with a recovery of 96 ± 3% (SWV) and 91 ± 2% (DPV).
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Received June 20, 2000. Revision March 6, 2001.
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Guiberteau, A., Durán-Merás, I., Galeano, T. et al. Voltammetric Study of the Hydrolysis Product of Bendiocarb at the Glassy Carbon Electrode. Mikrochim Acta 137, 135–140 (2001). https://doi.org/10.1007/s006040170003
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DOI: https://doi.org/10.1007/s006040170003