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Fabrication of Platinum-Doped Nico2o4 Nanograss Modified Electrode for Determination of Carbendazim Publisher Pubmed



Mahmoudimoghaddam H1, 2 ; Akbari Javar H3 ; Garkaninejad Z4
Authors
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Authors Affiliations
  1. 1. Environmental Health Engineering Research Center, Kerman University of Medical Sciences, Kerman, Iran
  2. 2. Department of Environmental Health, School of Public Health, Kerman University of Medical Sciences, Kerman, Iran
  3. 3. Pharmaceutics Department, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
  4. 4. Chemistry Department, Faculty of Science, Shahid Bahonar University of Kerman, Kerman, Iran

Source: Food Chemistry Published:2022


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. © 2022 Elsevier Ltd