Carbendazim Trace Analysis in Different Samples by Using Nanostructured Modified Carbon Paste Electrode As Voltametric Sensor Publisher Pubmed



Kasaeinasab A^{1, 2} ; Mahabadi HA¹ ; Shahtaheri SJ³ ; Faridbod F⁴ ; Ganjali MR⁴ ; Mesgari F⁴ Show Affiliations
Source: PLoS ONE Published:2023

Abstract

Carbendazim (CBZ) as a fungicide is widely used to control fungal diseases in agriculture, veterinary medicine, and forestry. In this study, molecularly imprinted nano-size polymer was synthesized and then combined with multiwalled carbon nanotubes to be used as modifiers for carbon paste electrode to detect carbendazim in water, fruit, agricultural wastewater, and urine samples by using the square-wave technique. Some common ions and pesticides were investigated as interferences in analyte, to study the sensitivity and selectivity of the modified carbon paste electrode for carbendazim. The combination of molecular imprinted polymer and multiwalled carbon nanotubes showed a significant increase in peak current in electrocatalytic activity on electrochemical detection of the carbendazim. The linear range of 1 × 10−10 to 5 × 10−8 molL−1 was investigated. The lower detection limit was determined to be 0.2 × 10−10 molL−1, and the relative standard deviation for the target molecule analysis was 2.07%. The result reveals that the modified carbon paste sensor with Multi walled Carbon Nanotubes (MWCNTs) and Molecular Imprinted Polymer (MIPs) can be used easily, without preparation steps that have high selectivity and sensitivity to determine carbendazim in water, fruit, agricultural wastewater, and urine samples. © 2023 Kasaeinasab et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.