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Your search keyword '"Aghris, S."' showing total 22 results
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22 results on '"Aghris, S."'

12. Disposal graphite pencil sensor for trace detection of phthalic acid diamide insecticide flubendiamide in wastewater and white rice.

Author

Aghris, S., Ajermoun, N., Loudiki, A., Ettadili, F.E., Laghrib, F., Farahi, A., Saqrane, S., Bakasse, M., Lahrich, S., and El Mhammedi, M.A.

Subjects
*PHTHALIC acid, *GRAPHITE, *SEWAGE, *RICE, *PENCILS, *DIAMIDES, *INSECTICIDES
Abstract

An analytical method for the determination of Flubendiamide (FBD) was investigated for the first time in this study using disposable pencil graphite electrodes (PGE). A detailed study of the electrochemical properties of FBD was carried out in phosphate buffer solution (PBS, pH 7.0). The results showed a well-defined reversible system result from the transformation of FBD to the corresponding hydroxyl-derivative. The results showed a linear range from 1 to 500 µM (R2 = 0. 9952), as well as detection limit of 0.53 µM. The PGE sensor was successfully applied for the detection of FBD in wastewater and white rice. [ABSTRACT FROM AUTHOR]

Published
2023
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21. Electrochemical evaluation of intermediate reduction of p-nitrophenol to nitroso derivative at palladium-phosphate electrode.

Author

Hammani, H., Aghris, S., Bakasse, M., Lahrich, S., and El Mhammedi, M. A.

Subjects
*VOLTAMMETRY, *PALLADIUM compounds, *CARBON electrodes, *ELECTRODES, *CATALYTIC reduction, *SQUARE waves
Abstract

A novel voltammetric sensor for the determination of p-nitrophenol has been developed using carbon paste electrode (CPE) modified by metallic palladium (Pd) supported onto natural phosphate (NP). The proposed protocol demonstrates the successful application of palladium compounds in the electrochemical determination of p-nitrophenol (p-NP) in acetate buffer (pH 4.7). Indeed, the palladium displayed a strong catalytic action towards p-nitrophenol reduction. Electrochemical methods including square wave voltammetry (SWV) and chronoamperometry have been used to evaluate the electrochemical behaviour of the palladium towards the catalytic reduction of p-NP. In addition, the proposed electrode was able to catalyse and visualise the intermediate reaction of the nitro group reduction to nitroso group. [ABSTRACT FROM AUTHOR]

Published
2021
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