摘要
在含镍离子和铜离子的溶液中用循环伏安法在玻碳电极（GCE）表面电化学沉积一层镍-氧化镍及铜-氧化亚铜纳米粒子（Ni/NiO、Cu/Cu2O）,在-0.3 V电位条件下,该传感器能催化还原H2O2。用安培法测定H2O2的响应电流与浓度在2.5×10-6-2.8×10-3mol/L范围内呈线性关系,研究了各种实验条件对H2O2传感器性能的影响。该传感器制作简单,在实际试样的回收率测定中,结果满意。
A modified electrode was fabricated by means of electrodeposition nickel-nickel oxide and copper-cuprous oxide on a glassy carbon electrode in the solution of Ni2＋ and Cu2＋.It can catalyze the reduction of H2O2 at an applied potential of-0.3 V.The response current was linearly changed with the concentration of H2O2 in a range from 2.5×10-6 to 2.8×10-3 mol/L.The effects of assay conditions on performances of hydrogen peroxide sensor were studied.The preparation of the sensor is simple.The sensor was used for the determination of real samples containing hydrogen peroxide with satisfactory recovery and result.
出处
《应用化学》
CAS
CSCD
北大核心
2009年第12期1466-1470,共5页
Chinese Journal of Applied Chemistry
关键词
镍-氧化镍
铜-氧化亚铜
循环伏安法
安培法
电化学沉积
nickel-nickel oxide
copper-cuprous oxide
cyclic voltammetry
amperometric
electrodeposition
作者简介
通讯联系人：金根娣，女，硕士，副教授；E-mail：jsyzjgd@sina．com；研究方向：电化学检测
