摘要
研究了聚中性红膜修饰电极对ＮＯ－２的催化氧化性能，建立了测定ＮＯ－２的新方法。ＮＯ－２的浓度在２．０×１０－６～５．０×１０－３ｍｏｌ／Ｌ范围内与催化氧化峰电流呈良好的线性关系，检测限为６．０×１０－７ｍｏｌ／Ｌ。若利用计时电流法分析，检测限可达８．０×１０－８ｍｏｌ／Ｌ。
This paper reports the catalytic oxidation property of NO - 2 at the poly(neutral red ) film modified electrodes.A new method of determining NO - 2 fast and sensitively had been set up.The catalytic oxidation peak currents are linear relationship with NO - 2 concentrations in the range of 2.0×10 -6 ～5 0×10 -3 mol/L.If chronoampermetry method will has been used to analysis the NO - 2 ,the detection limits is upto 8.0×10 -8 mol/L.This method possesses high selectivity and it has been applied to determine the real samples with satisfacotry results.
出处
《分析试验室》
CAS
CSCD
1998年第6期10-13,共4页
Chinese Journal of Analysis Laboratory
基金
国家自然科学基金
关键词
聚中性红膜
修饰电极
亚硝酸根
测定
催化氧化
Poly(neutral red) modified electrodes
nitrite
electrocatalysis
determination
