电沉积纳米NiOx无酶葡萄糖传感器的性能

• 作 者: 王艺兰 包晓玉 杨妍 刘营营
• 机 构: 南阳师范学院化学与制药工程学院,
• 出 处: 分析试验室
• 发表日期: 2014年07期
• 关键词: Electrodeposition Nanonickel (Ⅱ) oxide nanoparticles Electrocatalytic oxidation

利用电沉积法在ITO电极表面修饰了一薄层NiOx,通过循环伏安和计时电流等方法研究了该修饰电极的电化学特性。实验表明:该修饰电极对葡萄糖有良好的催化作用,对葡萄糖检测的线性范围为0.001~1.0 mmol/L,检出限为0.3μmol/L(S/N=3),灵敏度为65.26μA·(mmol/L)-1,响应时间为3 s。传感器可用于实际样品的测定。

A thin layer of NiOx was modified by electrodeposition on the surface of ITO electrode. The electrochemical properties of the modified electrode were studied by cyclic voltammetry and chronoamperometry. The results showed that the modified electrode had a good catalytic effect on glucose. The linear range of detection was glucose (0.001-1.0 mmol / L), the detection limit was 0.3 μmol / L (S / N = 3) and the sensitivity was 65.26 μA · mmol / L) -1, the response time is 3 s. The sensor can be used to determine the actual sample.