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金纳米颗粒@碳微球的制备及其电化学检测汞离子性能研究

Electrochemical Determination of Hg(Ⅱ) at Gold Nanoparticles@Carbonaceous Microspheres Modified Electrode
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摘要 本文研究了金纳米颗粒@碳微球(Au@CMSs)的制备及水环境中汞离子在该材料上的电化学行为.实验结果表明,在0.1 mol·L^(-1)pH=5.0的NaAc-HAc缓冲溶液中,采用方波伏安法测定汞离子,其浓度与氧化峰电流强度线性良好,相关系数为0.997,检出限为3.69×10^(-8)mol·L^(-1)(3σ方法). The gold nanoparticles@carbonaceous microspheres (Au@CMSs) and Au@CMSs modified glassy carbon electrode (GCE) were prepared. The Au@CMSs modified GCE was further examined for possible sensitive detection of mercury ions (Hg(II)) in an aqueous solution by square wave anodic stripping voltammetry (SWASV). The excellent performance was found in the stripping analysis of Hg (II) in 0.1 tool-L-1 NaAc-HAc (pH = 5.0) with a sensitivity of 25.863 A. (mol. L-1)-1 and a detection limit of 3.69×10-8 tool. L-I based on the 30- method.
出处 《电化学》 CAS CSCD 北大核心 2016年第1期20-24,共5页 Journal of Electrochemistry
基金 国家重点基础研究发展计划(No.2011CB933700)资助
关键词 汞离子 金纳米颗粒@碳微球 方波伏安法 Hg(II) gold nanoparticles@carbonaceous microspheres anodic stripping voltammetry
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参考文献9

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