【摘要】 发现大环铜配合物[Cu（Ⅱ）L]Cl2 对一氧化氮 （NO）具有电催化氧化作用 （L=1 ,8_二乙醇基₁ ,3 ,6 ,8 ,10 ,13_六氮杂₁4_冠4）;研制成用于NO伏安法测定的微铂盘Nafion -Cu（Ⅱ）L膜修饰电极。当NO的浓度在1.4×10-5 ～5.6×10-7 mol/L范围内氧化峰电流与NO的浓度呈线性关系 ,相关系数为0.994 ,亚硝酸、抗坏血酸、多巴胺等物质不干扰NO测定更多还原

【Abstract】 The preparation of an electrode modified by Nafion-copper(Ⅱ) macrocyclic complex Cl2 (L=1,8 _ diethoxy _ 1,3,6,8,10,13 _ hexaaza _ 14 _ crown _ 4)is described. It was found that the electrode modified by Nafion-copper(Ⅱ) macrocyclic complex showed a high catalytic activity for the oxidation of NO with high sensitivity and selectivity for NO determination. NO was detected as the oxidation current by the 1.5 _ order differential linear scan voltammetry. NO concentration was linear with the oxidation current in the range of 1.4×10-5 to 5.6×10-7 mol/L. The detection was free from the interference of some biological substances, such as ascorbic acid, nitrite and L _ arginine.更多还原