Fabrication of a sensitive electrochemical sensor based on CuS-modified carbon paste electrode for hydrazine analysis in water samples
Original scientific paper
DOI:
https://doi.org/10.5599/jese.2832Keywords:
Differential pulse voltammetry, , CuS nanosheets, environmental pollutants, chemically modified electrodeAbstract
A new electrochemical sensor based on a CuS-modified carbon paste electrode (CPE) was fabricated for the determination of hydrazine. In comparison with the bare CPE, the CuS-modified electrode significantly enhanced the electrooxidation performance of hydrazine by reducing the oxidation overpotential and increasing the oxidation peak current. Differential pulse voltammetry was used as the analytical method for the quantitative determination of hydrazine. The anode peak current was linearly related to hydrazine concentrations between 0.06 and 270.0 μM with a detection limit of as little as 0.02 μM. The sensor modification also showed good stability, reproducibility, and sensitivity. In addition, experimental results demonstrated the reliability and effectiveness of the sensor in determining hydrazine in various types of water samples.
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Copyright (c) 2025 Ahmad Amer Al-Salman, Rafah Mohammed Thyab, Muhammad Abdel Hasan Shallal
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