First electrochemistry of herbicide pethoxamid and its quantification using electroanalytical approach from mixed commercial product

Jevtić, Sonja • Vukojević, Vesna • Đurđić, Slađana • Pergal, Marija • Manojlović, Dragan • Petković, Branka • Stanković, Dalibor

Abstract

This work present a new approach for the detection of relatively new herbicide pethoxamid (POA), a first electrochemical behavior and determination based on its oxidation on boron-doped diamond electrode in Britton-Robinson buffer solution at pH 4. Square wave voltammetric technique was used for quantification of POA at anodic potential of 1.35 V vs reference Ag/AgCl electrode. The proposed electroanalytical method is operational in the linear working range from 3 to 100 μM of POA with a limit of detection of 1.37 μM. The developed analytical procedure was successfully tested for determination of this herbicide in standard/spiked river water samples and commercial herbicide Successor T SE/spiked river water samples, offering a simple, fast and inexpensive alternative way of pesticide determining to chromatographic methods employed for this purpose.

Funding

Ministry of Science and Technological Development of the Republic of Serbia, Project Number III45022
Ministry of Science and Technological Development of the Republic of Serbia, Project Number OI172030
Magbiovin project (FP7- ERAChairs-Pilot Call-2013, Grant agreement: 621375)