一个新的3D-CB/HEC-CH@Cu混合电极,用于在环境水中灵敏快速检测氨
Pablo Henrique Silva Martins1, Hugo Leonardo Souza Lara Leão1, Polyana Fernandes Pereira1
1Instituto Federal Goiano, Campus Rio Verde, Rod. Sul Goiana Km 01, Zona Rural, Rio Verde, GO, Brazil. pablo0phsm@gmail.com.
Analytical methods : advancing methods and applications
|February 9, 2026
概括
一个使用3D打印碳黑 (3D-CB) 的新型电极提供了对水中的氨 (AN) 的敏感电化学检测. 这种具有成本效益的方法为水质控制提供了准确的结果.
科学领域:
- 电化学 电化学 电化学
- 材料科学 材料科学 材料科学
- 环境科学 环境科学
背景情况:
- 氨 (AN) 是一个关键的水质参数.
- 准确和高效的检测方法对于环境监测至关重要.
- 现有的方法可能在成本,安全性或效率方面存在局限性.
研究的目的:
- 开发和验证一种用于检测氨的新型电化学传感器.
- 为了利用3D打印的碳黑电极,修改了基乙纤维素/酸盐双层和铜电极.
- 为了评估传感器的性能,从灵敏度,精度和准确度来评估水的分析.
主要方法:
- 一个3D打印碳黑 (3D-CB) 电极的制造.
- 将电极涂上一个基乙纤维素/素 (HEC/CH) 双层.
- 铜电极放置在修改后的电极表面上.
- 在酸盐缓冲器 (pH 9) 中使用正方波电压测量 (SWV) 电化学探测氨.
主要成果:
- 开发的传感器表现出在0.7到20.4毫克L-1的范围内对AN检测的线性响应.
- 达到了0.014毫克L-1的低检测极限 (LOD) 和0.043毫克L-1.1的定量极限 (LOQ).
- 证明了良好的精度 (RSD ≤4.18%) 和高分析吞吐量 (每小时≤70次分析).
- 在真实水样中精确地确定AN,回收率约为99.8%.
结论:
- 拟议的3D-CB/HEC-CH@Cu电极与SWV相结合是确定氨的可行方法.
- 该传感器为水质控制提供了一种高效,低成本和安全的替代方案.
- 这种方法有助于提高环境监测能力.
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