A simple platform for the electro-catalytic detection of the dimetridazole using an electrochemical sensor fabricated by electro-deposition of Ag on carbon graphite: application: orange juice, tomato juice and tap water
| Autor: | Idriss Bakas, Jallal Zoubir, Ali Assabbane |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Orange juice
H1-99 Multidisciplinary Materials science Science (General) Electro-deposition Analytical chemistry Electrochemistry Dimetridazole Electrochemical gas sensor Social sciences (General) Q1-390 Microcrystalline Tap water Anti-protozoal Electrode Silver microparticles medicine μAg@CPE Cyclic voltammetry Research Article medicine.drug |
| Zdroj: | Heliyon, Vol 7, Iss 7, Pp e07542-(2021) Heliyon |
| ISSN: | 2405-8440 |
| Popis: | The objective of this paper is to evaluate and optimize the experimental parameters of the electro-deposition of silver atom nuclei on a graphite carbon paste to elaborate an electrochemical sensor. The electro-deposition process was performed using the cyclic voltammetry. The electrochemical studies show that the deposited silver micro-particle array offers an excellent electro-catalytic activity towards the NO2 attractor group of the dimetridazole side chain. SEM morphological analysis of the silver deposits indicates the presence of a large number of Ag micro-particles on the graphite carbon with good nucleation. The size of the Ag micro-particles is of the order of 19,7621 μm and their distribution is normal over the entire range of the pulp. DRX analysis of the deposit also indicates that the microcrystalline structure of the silver microcrystals in the deposit is face-centered cubic. The electrochemical behavior of dimetridazole is totally irreversible, the transfer process is controlled by diffusion phenomena on the surface of the electrode covered by a silver deposit realized μAg@CPE. The analytical performance of the constructed electrode shows a good selectivity. Calibration curves for the detection of dimetridazole have been drawn in the concentration range of 3,5 × 10−4 mol/L to 10−6 mol/L using cyclic voltammetry method, with a detection and quantification limits of 6.565 × 10−7 mol/L and 2.216 × 10−6 mol/L respectively. The applicability of the constructed electrode has been tested in real samples including orange juice, tomato juice, tap water. The results obtained show a recovery rate above 94%, which is very satisfactory. Silver microparticles, Electro-deposition, Anti-protozoal, Dimetridazole, μAg@CPE |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|