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  • Title: Fabrication of platinum-doped NiCo2O4 nanograss modified electrode for determination of carbendazim.
    Author: Mahmoudi-Moghaddam H, Akbari Javar H, Garkani-Nejad Z.
    Journal: Food Chem; 2022 Jul 30; 383():132398. PubMed ID: 35183970.
    Abstract:
    In this study, a platinum-doped nickel cobaltite nanograss (Pt-doped NiCo2O4 NG) with its own unique structural features was initially synthesized, utilizing a simple hydrothermal method and then applied as a novel platform for the detection of carbendazim (C9H9N3O2; CBZ). To this end, the CBZ electrochemical signals were evaluated by means of differential pulse voltammetry (DPV), demonstrating the acceptable catalytic effect of the Pt-doped NiCo2O4 NG/screen-printed electrode (SPE) on the CBZ oxidation signal. Under the optimized conditions, CBZ was subsequently quantified by the Pt-doped NiCo2O4 NG/SPE with a wide linear range (0.03-140 μM) and a low limit of detection (LOD) value (0.005 μM). The proposed sensor was thus characterized by good anti-interference ability, selectivity, and stability. The analysis of the real samples, viz. tomato and lettuce, also confirmed that the given sensor had good recoveries and relative standard deviation (RSD). Ultimately, a comparison between liquid chromatography-mass spectrometry (LC-MS) and this method established no significant difference in the results.
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