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CuS/Prussian blue core-shell nanohybrid as an electrochemical sensor for ascorbic acid detection

机译：CUS / PRUSSISIAN BLUE-SHALL纳米嗜含量作为抗坏血酸检测的电化学传感器

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摘要

An electrochemical sensor based on core-shell nanostructured copper sulfide@Prussian blue composites (CuS@PB) was investigated for ascorbic acid (AA) detection. CuS nanoparticles (NPs) were prepared by a hydrothermal method, then core-shell CuS@PB nanohybrid was fabricated through in situ synthesis of PB on CuS NPs. Taking advantage of their enhanced properties, a novel electrochemical AA sensor was developed by drop-coating of CuS@PB nanohybrid on glassy carbon electrode (GCE). As expected, electrochemical observations showed that CuS@PB/GCE presented higher electrocatalytic performance of AA than PB/GCE, with a wide linear range (5-3875 mu M, R = 0.9997), fast response time (<3 s), high sensitivity (256.91 mu AmM(-1)cm(-2)), as well as a low limit of detection (0.24 mu M at a signal-tonoise ratio of 3). Additionally, the CuS@PB/GCE showed excellent reproducibility, storage stability, anti-interference, and selectivity. The application of a CuS @PB/GCE sensor for an AA assay in beverage samples achieved satisfactory results, demonstrating great prospects for the quantitative detection of AA in various fields.
机译：研究了基于核 - 壳纳米结构铜硫化铜@普鲁士蓝色复合材料（CUS @ PB）的电化学传感器，用于抗坏血酸（AA）检测。通过水热法制备CUS纳米颗粒（NPS），然后通过在CUS NPS上原位合成PB制备核心 - 壳CUS @ PB纳米汞。利用其增强的性质，通过在玻璃碳电极（GCE）上的CUS @ PB纳米胺脱落开发了一种新型电化学AA传感器。正如预期的那样，电化学观察表明，CUS @ PB / GCE呈现出比Pb / GCE的较高的电催化性能，具有宽线性范围（5-3875μm，r = 0.9997），快速响应时间（<3 s），高灵敏度（256.91μmmm（-1）cm（-2）），以及检测的低限制（以信号 - 温度为0.24μm为3）。此外，CUS @ PB / GCE显示出优异的再现性，储存稳定性，抗干扰和选择性。 CUS @ Pb / GCE传感器在饮料样品中的AA测定中的应用达到了令人满意的结果，展示了各种领域中AA的定量检测的巨大前景。

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  • 来源
    《Nanotechnology》 |2019年第32期|共12页
  • 作者

    Li Lihuang; Zhang Peng; Li Ziyang; Li Danyang; Han Bin; Tu Li; Li Bo; Wang Yange; Ren Lei; Yang Peiyan; Ke Sunkui; Ye Shefang; Shi Wei;

  • 作者单位

    Xiamen Univ Coll Mat Dept Biomat Xiamen 361005 Peoples R China;

    Xiamen Univ Coll Mat Dept Biomat Xiamen 361005 Peoples R China;

    Xiamen Univ Coll Mat Dept Biomat Xiamen 361005 Peoples R China;

    Xiamen Univ Coll Mat Dept Biomat Xiamen 361005 Peoples R China;

    Xiamen Univ Coll Mat Dept Biomat Xiamen 361005 Peoples R China;

    Xiamen Univ Coll Mat Dept Biomat Xiamen 361005 Peoples R China;

    Xiamen Univ Coll Mat Dept Biomat Xiamen 361005 Peoples R China;

    Xiamen Univ Coll Mat Dept Biomat Xiamen 361005 Peoples R China;

    Xiamen Univ Coll Mat Dept Biomat Xiamen 361005 Peoples R China;

    Xiamen Univ Affiliated Hosp 1 Dept Surg Xiamen 361004 Peoples R China;

    Xiamen Univ Zhongshan Hosp Dept Thorac Surg Xiamen 361004 Peoples R China;

    Xiamen Univ Coll Mat Dept Biomat Xiamen 361005 Peoples R China;

    Xiamen Univ Coll Mat Dept Biomat Xiamen 361005 Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 特种结构材料;
  • 关键词

    copper sulfide; Prussian blue; ascorbic acid; electrochemical sensor; amperometric;

    机译：硫化铜;普鲁士蓝;抗坏血酸;电化学传感器;安培;

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