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Chimica et Natura Acta

Abstract

Carbaryl (1-naphthyl methylcarbamate) is a carbamate pesticide used to cause adverse environmental and health effects when misused through water contamination. Therefore, this research aimed to develop a direct electrochemical detection method for carbaryl in aqueous media using boron-doped diamond (BDD) electrodes. In this context, BDD electrodes exhibited superior electrochemical performance compared to conventional materials such as gold (Au), platinum (Pt), and glassy carbon electrodes (GCE) due to a wide potential window, low background current, and excellent chemical stability. Cyclic and differential pulse voltammetry reported a well-defined oxidation peak for carbaryl at 1.30 V, with significantly enhanced sensitivity. The results showed that there was a linear response in the concentration range of 10–100 μM, with a detection limit of 5.30 μM, quantification limit off 100.69 μM, excellent reproducibility (RSD = 2.35%) and recovery (100.97%). Furthermore, SEM and Raman analyses confirmed the polycrystalline structure and high boron doping level of BDD surface. The method was validated using tap water samples, confirming the applicability for real-world environmental monitoring. These results suggested the potential of BDD electrodes for sensitive, rapid, and direct detection of carbaryl in water without the need for complex sample preparation.

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Creative Commons Attribution-Share Alike 4.0 International License
This work is licensed under a Creative Commons Attribution-Share Alike 4.0 International License.

Volume

14

Issue

2

First Page

146

Last Page

154

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DOI
https://doi.org/10.24198/cna.v14.n2.72780