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Centre of Excellence for Hydrogen and Renewable Energy, “Vinča” Institute of Nuclear Sciences, University of Belgrade , Belgrade , Serbia
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Department of Physics, “Vinča” Institute of Nuclear Sciences, University of belgrade , Belgrade , Serbia
Centre of Excellence for Hydrogen and Renewable Energy, “Vinča” Institute of Nuclear Sciences, National Institute of Republic of Serbia , Belgrade , Serbia
Centre of Excellence for Hydrogen and Renewable Energy, “Vinča” Institute of Nuclear Sciences, National Institute of Republic of Serbia Belgrade, Serbia
Centre of Excellence for Hydrogen and Renewable Energy, “Vinča” Institute of Nuclear Sciences, National Institute of Republic of Serbia Belgrade, Serbia
Centre of Excellence for Hydrogen and Renewable Energy, “Vinča” Institute of Nuclear Sciences, National Institute of Republic of Serbia Belgrade, Serbia
Centre of Excellence for Hydrogen and Renewable Energy, “Vinča” Institute of Nuclear Sciences, National Institute of Republic of Serbia Belgrade, Serbia
AD Harbi d.o.o. , Sarajevo , Bosnia and Herzegovina
AD HARBI , Sarajevo , Bosnia and Herzegovina
Innovation Science Development Center (INRC), AD Harbi Ltd Sarajevo, B&H , Sarajevo , Bosnia and Herzegovina
The work aims to design a pyrophyllite-modified carbon paste electrode for pesticide detection
in aqueous solutions. The structural and morphological characterization of natural
pyrophyllite clay for Parsovići mine, Bosnia and Herzegovina, and mechanically modified
pyrophyllite was performed using X-ray diffraction analysis (XRD), scanning electron
microscopy (SEM), Fourier transform infrared spectroscopy (FTIR) and particle size analysis
(PSD). The electrochemical characteristics of the constructed electrode were investigated using
cyclic voltammetry in 1 mM K4Fe(CN)6 in 0.1 M KCl and 0.5 M H2SO4 and differential pulse
stripping voltammetry in Britton-Robinson buffer at pH 2-8. It was shown that the maximum at
+ 0.96 V versus Ag/AgCl originates from oxidation by carbendazim at pH 4 in the Britton-
Robinson buffer. The electrode designed in this way showed numerous advantages such as good
stability and sensitivity. The developed analytical method is linear over the range of 1 ppm to
10 ppm with r=0.999 and a detection limit of 0.3 ppm.
This work is supported by the Ministry of Science, Technology, and Innovation of The Republic of Serbia under Grant 451-03-68/2022/14/200017. We thank AD Harbi Ltd for the assignment of mineral raw materials for research purposes.
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