Amperometric quantification of the pesticide ziram at boron doped diamond electrodes using flow injection analysis

Abstract

In this paper sensitive and selective quantification of the pesticide ziram exploiting its oxidation at a boron doped diamond (BDD) electrode is evaluated. The voltammetric behavior of the pesticide shows in acidic media three well-defined oxidation peaks. For quantification an analytical procedure based on flow injection analysis has been developed. Under optimized experimental conditions a linear dynamic range from 10 to 1000 nM was obtained. The limit of detection (LOD) was estimated to be 2.7 nM. Aftere valuation of effects from possible interferences, the proposed procedure was successfully applied to real samples. (C) 2016 Elsevier B.V. All rights reserved.