一种基于硫属化物的灵敏电化学传感器，用于实际样品中莫普朗残留的超痕量检测。
A sensitive chalcogenide-based electrochemical sensor for ultra-level detection of Mospilan residues in real samples.
作者信息
Beheshti-Marnani Amirkhosro, Rohani Tahereh, Kermani Mahdokht Arjmand, Mohammadi Sayed Zia
机构信息
Department of Chemistry, Payame Noor University, Tehran, 19395-4697, Iran.
Agricultural Engineering Research Department, Kerman Agricultural and Natural Resources Research and Education Center, Agricultural Research, Education and Extension Organization (AREEO), Kerman, Iran.
出版信息
Sci Rep. 2025 Feb 18;15(1):5966. doi: 10.1038/s41598-025-89256-x.
Addressed herein, the synthetic bismuthinite and bismuthinite@copper sulphide as two metal chalcogenides have been applied for modifying a glassy carbon electrode(GCE). The as-prepared nanomaterials were characterized using X-ray diffraction (XRD), scanning electron microscopy(SEM) and Energy-dispersive X-ray spectroscopy(EDX). By comparing the results, bismuthinite @copper sulphide hybridized with graphene oxide (GO) modified electrode exhibited superior sensitivity for detection ultra-levels of pesticide Mospilan (acetamiprid) in real samples. The dynamic concentration range of acetamiprid was found to be 80-680nM with a remarkably low detection limit about 4.1nM along with good stability and repeatability. Finally, the fabricated electrochemical sensor, bismuthinite@copper sulphide/GO, was suggested as a suitable alternative to more complex enzyme-based and aptamer-based methods for Mospilan detection.
本文中，合成的辉铋矿和辉铋矿@硫化铜这两种金属硫族化物已被用于修饰玻碳电极（GCE）。使用X射线衍射（XRD）、扫描电子显微镜（SEM）和能量色散X射线光谱（EDX）对所制备的纳米材料进行了表征。通过比较结果发现，与氧化石墨烯（GO）杂交的辉铋矿@硫化铜修饰电极对实际样品中超痕量农药莫比朗（啶虫脒）的检测具有优异的灵敏度。啶虫脒的动态浓度范围为80 - 680 nM，检测限极低，约为4.1 nM，同时具有良好的稳定性和重复性。最后，所制备的电化学传感器，即辉铋矿@硫化铜/GO，被认为是一种适用于检测莫比朗的更复杂的基于酶和适配体的方法的合适替代方案。
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