分析化学2024，Vol.52Issue(2)：220-230,中插8-中插10,14.DOI:10.19756/j.issn.0253-3820.231293
钼酸锰/氮化碳纳米复合材料修饰电极检测甲硝唑
Electrochemical Detection of Metronidazole Based on MnMoO4/g-C3N4 Modified Electrode
摘要
Abstract
MnMoO4/g-C3N4 nanocomposites were synthesized by a hydrothermal method.The MnMoO4/g-C3N4 nanocomposites were characterized by X-ray diffraction(XRD),Fourier transform infrared spectroscopy(FT-IR)and transmission electron microscopy(SEM)to analyze their morphology and structure.The MnMoO4/g-C3N4 was coated on the surface of the glassy carbon electrode(GCE)by a drop coating method and thus a electrochemical sensor for detection of metronidazole(MNZ)was successfully constructed.The electrochemical properties of the MnMoO4/g-C3N4/GCE electrode were characterized by cyclic voltammetry(CV)and differential pulse voltammetry(DPV).The effects of pH value and scanning rate on the current response were investigated.Under optimal experimental conditions,this electrochemical sensor showed a wide linear detection range(0.5-2400 μmol/L)and a low limit of detection(LOD = 1.33 nmol/L,3σ/k)for detection of MNZ.Besides,this sensor showed excellent selectivity,stability and reproducibility.The sensor was used to detect MNZ residue in eggs and milk samples,with recoveries of 97.7%-103.7%and 96.9%-102.4%,and relative standard deviations of 1.1%-2.2%,respectively,indicating that the prepared MnMoO4/g-C3N4/GCE sensor could be successfully applied to detection of MNZ in food samples.关键词
钼酸锰/类石墨相氮化碳/电化学检测/甲硝唑Key words
Manganese molybdate/Graphitic phase carbon nitride/Electrochemical detection/Metronidazole引用本文复制引用
刘蕊,武天恒,刘日嘉,孙源..钼酸锰/氮化碳纳米复合材料修饰电极检测甲硝唑[J].分析化学,2024,52(2):220-230,中插8-中插10,14.基金项目
国家自然科学基金项目(Nos.42207266,32271609)、黑龙江省自然科学基金-联合引导项目(No.LH2022B011)和中央支持地方高校改革发展资金优秀青年项目(No.YSL 037)资助.Supported by the National Natural Science Foundation of China(Nos.42207266,32271609),the Joint Guidance Project of Natural Science Foundation of Heilongjiang Province(No.LH2022B011)and the Central Finance to Support the Development of Local Universities(No.YSL 037). （Nos.42207266,32271609）
