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| 基于Ag-Ni-Fe纳米复合材料的电化学传感器快速检测水中Hg |
| Rapid Detection of Mercury in Water by A New Type of Silver Nickel Iron Nanocomposite Based Electrochemical Sensor |
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| DOI： |
| 中文关键词: 汞 Ag-Ni-Fe纳米复合材料 电化学传感器 快速检测 水质 |
| 英文关键词: Mercury Ag Ni Fe nanocomposite Electrochemical sensor Rapid detection Water quality |
| 基金项目:河南省教育科学规划2022年度一般课题基金资助项目（2022YB0724）；河南省2022年职业院校省级骨干教师培养基金资助项目 |
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| 中文摘要: |
| 通过在Fe纳米粒子表面负载一层Ni纳米粒子来提高Fe的稳定性，并在Ni表面负载Ag纳米粒子，制备一种新型的Ag-Ni-Fe纳米复合材料，用来修饰玻碳电极（GCE），构建Ag-Ni-Fe/GCE电化学传感器，实现水中Hg的快速检测。试验表明：Ag-Ni-Fe纳米复合材料具有良好的导电性和稳定性，可有效提高Ag-Ni-Fe/GCE传感器的灵敏度；Ag-Ni-Fe/GCE传感器对常见金属离子有良好的抗干扰能力，且在005 nmol/L~50 nmol/L和50 nmol/L~2 300 nmol/L范围内线性良好，方法检出限为0071 4 nmol/L，实际样品的加标回收率为988%~102%。 |
| 英文摘要: |
| A new type of Ag Ni Fe nanocomposite material was prepared by loading a layer of Ni nanoparticles on the surface of Fe nanoparticles to improve the stability of Fe， and loading Ag nanoparticles on the surface of Ni. It was used to modify the glassy carbon electrode for constructing the Ag Ni Fe/GCE electrochemical sensor and achieving rapid detection of Hg in water. The results showed that Ag Ni Fe had good conductivity and stability， and could effectively improve the sensitivity of Ag Ni Fe/GCE. Ag Ni Fe/GCE had a good anti interference ability against common metal ions， and had good linearity in the range of 005 nmol/L~50 nmol/L and 50 nmol/L~2 300 nmol/L， respectively. The method detection limit was 0071 4 nmol/L and the spiked recoveries of actual samples were between 988% and 102%. |
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