Ultra-selective determination of carbofuran by electrochemical sensor based on nickel oxide nanoparticles stabilized by ionic liquid
| Autor: | Hadi Baksh, Jamil A. Buledi, M. Ishaque Abro, Amber R. Solangi, Arfana Mallah, Syed Tufail Hussain Sherazi, Nadir H. Khand |
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| Rok vydání: | 2020 |
| Předmět: |
Aqueous solution
010405 organic chemistry Chemistry Nickel oxide Non-blocking I/O Nanoparticle General Chemistry 010402 general chemistry Electrochemistry 01 natural sciences 0104 chemical sciences Electrochemical gas sensor chemistry.chemical_compound Ionic liquid Cyclic voltammetry Nuclear chemistry |
| Zdroj: | Monatshefte für Chemie - Chemical Monthly. 151:1689-1696 |
| ISSN: | 1434-4475 0026-9247 |
| Popis: | In this work, an electrochemical sensor based on glassy carbon electrode modified with nickel oxide nanoparticles assisted by ionic liquid was developed for selective determination of carbofuran in green vegetables. Controlled synthesis of NiO nanoparticles was carried out by aqueous chemical growth procedure. Synthesized NiO nanoparticles were found to be ostensible candidate for selective determination of carbofuran, which is a highly toxic and hazardous pesticide. The crystallinity and morphology of as-synthesized NiO was confirmed by XRD, EDXS, and SEM. The average size of IL-assisted NiO nanoparticles was calculated to be 22.7 nm. Cyclic voltammetry was employed to compare the electrochemical behavior of NiO nanoparticles-modified glassy carbon electrode using IL with bare glassy carbon electrode by discriminating oxidation peak current response. For the determination of carbofuran, the linear dynamic range for IL-assisted NiO nanoparticles was achieved as 5.0–305 µM with limit of detection 0.5 µM. The developed sensor was successfully applied for selective determination of carbofuran in real samples of green vegetables with the percent recoveries observed from 93.3 to 103.5. |
| Databáze: | OpenAIRE |
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