The objective of this study was to develop a simple, stable, selective and reproducible mercury film modified glassy carbon electrode (MF/GCE) for the electrochemical determination of endosulfan. Under the optimal conditions (pH, scan rate and accumulation conditions), the electrode showed a good linear response to endosulafn in the range of 5 × 10⁻⁸–1 × 10⁻⁵ M concentrations. The detection limit was 5.910⁻⁸ M with good repeatability (RSD of 2.0%) and reproducibility (RSD of 4.3%). In addition, the analytical application of the proposed sensor was successfully applied for the determination of endosulfan in onion and tomato samples.

中文翻译：

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汞膜修饰玻碳电极电化学测定蔬菜样品中的硫丹

本研究的目的是开发一种简单、稳定、选择性和可重复的汞膜改性玻碳电极 (MF/GCE)，用于硫丹的电化学测定。在最佳条件（pH、扫描速率和积累条件）下，电极在5 × 10 ^-8 –1 × 10 ^-5 M 浓度范围内对磺胺嘧啶表现出良好的线性响应。检测限为 5.910 ^-8 M，具有良好的重复性（RSD 为 2.0%）和重现性（RSD 为 4.3%）。此外，该传感器的分析应用已成功应用于洋葱和番茄样品中硫丹的测定。