河南城建学院学报Issue(3)：53-56,74,5.
聚硫堇/纳米金修饰电极对NO2-的电催化氧化及分析应用
Electrocatalytic oxidation of nitrite on poly-thionine/nano au composites modified glassy carbon electrode
潘强1
作者信息
- 1. 河南神马尼龙化工有限责任公司，河南 平顶山467013
- 折叠
摘要
Abstract
This paper describes the electrocatalytic oxidation of nitrite by poly-thionine /nano au modified glassy carbon electrode. Due to the synergistic effect of poly-thionine and gold nanoparticle, the modified elec-trodes could oxide nitrite with enhanced oxidation current and a decrease in required overpotential compared with bare electrode. The influence factors for nitrite assay, such as polymer film thickness, adsorption time of nano au onto the PTH film, different buffers and pH,interferent ions are discussed. Under the optimal condi-tions, the oxidation current signal is proportional to the concentration of nitrite from 3. 0 × 10 -6 to 1. 0 × 10 -3 mol/L with a detection limit of 1. 0 × 10 -6 mol/L. The proposed method is applied to determine nitrite concen-tration in fruit samples and the results are satisfactory. The PTH/nano au modied electrode is proved to have high sensitivity, good storage stability, reproducibility and anti-interference ability.关键词
硫堇/纳米金/电聚合/亚硝酸根/电催化氧化Key words
poly-thionine/nano Au/electropolymerization/nitrite/electrocatalytic oxidation分类
化学化工引用本文复制引用
潘强..聚硫堇/纳米金修饰电极对NO2-的电催化氧化及分析应用[J].河南城建学院学报,2014,(3):53-56,74,5.
