Chronopotentiometric determination of metamitron comparing classical and Box-Behnken optimization approaches

This paper describes an optimization procedure for determination of the herbicide metamitron by chronopotentiometry. Two different working electrodes were use in the experiments: glassy carbon and thin film mercury electrode. The analytical signal of metamitron was the result of irreversible reducti...

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Bibliographic Details
Main Authors: Đurović Ana
Stojanović Zorica
Kravić Snežana
Rakić Dušan
Grahovac Nada
Corporate Author: International Symposium on Analytical and Environmental Problems (24.) (2018) (Szeged)
Format: Book part
Published: 2018
Series:Proceedings of the International Symposium on Analytical and Environmental Problems 24
Kulcsszavak:Agrokémia
Online Access:http://acta.bibl.u-szeged.hu/56294
Description
Summary:This paper describes an optimization procedure for determination of the herbicide metamitron by chronopotentiometry. Two different working electrodes were use in the experiments: glassy carbon and thin film mercury electrode. The analytical signal of metamitron was the result of irreversible reduction on the working electrodes in Britton-Robinson buffer as the supporting electrolyte, and one reduction peak was obtained on both working electrodes. Operating conditions, involving several chemical and instrumental parameters such as: pH of Britton-Robinson buffer, initial potential and reduction current were optimized by the classical method, where one parameter is changing while others are constant, and by using Box-Behnken experimental design. In both optimization procedures, the maximum height of the metamitron analytical signal was requested. Obtained results from this study revealed that there were no differences between the two optimization methods.
Physical Description:110-114
ISBN:978-963-306-623-2