An Electrochemical Sensor Based on Au Nanoparticles for Rapid Determination of Nitrofurazone in Aquaculture Seawater

文献类型： 外文期刊

第一作者： He, Yunxia

作者： He, Yunxia;Wang, Qingkui;He, Yunxia;Chen, Jianlei;Zhang, Tianruo;Liu, Yang;Qu, Keming;Cui, Zhengguo;He, Yunxia;Chen, Jianlei;Zhang, Tianruo;Liu, Yang;Qu, Keming;Cui, Zhengguo

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关键词： electrochemical sensors; Au nanoparticles; nitrofurazone; aquaculture seawater

期刊名称：RUSSIAN JOURNAL OF ELECTROCHEMISTRY （ 影响因子：0.8； 五年影响因子：1.0 ）

ISSN： 1023-1935

年卷期： 2025 年 61 卷 5 期

页码：

收录情况： SCI

摘要： We have developed an electrochemical sensor for the rapid detection of nitrofurazone (NFZ) in aquaculture seawater, utilizing a glassy carbon electrode (GCE) modified with Au nanoparticles (AuNPs). Compared to the unmodified electrode, the modified electrode exhibited higher electrocatalytic activity than the GCE and could be used efficiently for the detection of NFZ. It was found that the AuNPs modified electrode exhibited a higher specific surface area, as determined by scanning electron microscopy characterization. The effects of various parameters, including the number of electrodeposition cycles for modified electrode preparation and the pH of the electrolyte for NFZ detection were optimized. Under optimized experimental conditions, the peak current and concentration of NFZ exhibited a linear relationship in the range of 3 to 100 mu M when analyzed using square wave voltammetry (SWV), with a limit of detection of 0.24 mu M. The proposed sensor was successfully utilized for the detection of NFZ in aquaculture seawater. The spiked recoveries ranged from 96.35 to 107% (RSD < 4.13%), indicating that the method demonstrates satisfactory accuracy and performance for detecting NFZ in real seawater.

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