摘要
研究了硫酸介质中 ,亚硝酸根离子对溴酸钾氧化中性红褪色的催化效应 ,选择了最佳反应条件。本法测定亚硝酸根的线性范围为 0 .0 0 5 0 .2 4μg·ml-1。方法简便、快速、选择性好 ,不需恒温加热 ,应用于水样中亚硝酸根的测定 ,结果满意。
The discoloration reaction and kinetic condition for the catalytic oxidation of neutral red in sulfuric acid medium with potassium bromate have been studied.The reaction is catalyzed by nitrite.The range of determination is 0.005~0.24 μg·ml -1 for nitrite.The method is simple,fast,with good selectivity.It has been applied satisfactorily to determine trace nitrite in water sample.
出处
《湖北化工》
2001年第1期45-46,共2页
Hubei Chemical Industry
关键词
亚硝酸根
催化光度法
动力学
水样
nitrite
catalytic spectrophotometry
kinetic analysis
