摘要
基于亚硝酸根对溴酸钾氧化甲基紫的反应具有催化作用,建立了测定亚硝酸根的催化动力学光度法,研究了最佳测试条件,用于测定水样和标准样品中的亚硝酸根,获得满意结果.方法检出限为0.16μg·50ml^(-1),线性范围为0.25—12.0μg·50mL^(-1),回收率在90%一108%之间.
Based on the catalytic effect of trace nitrite on the oxidation of methyl violet with potassium bromate,a determination of nitrite was established by catalytic kinetic spec-trophotometry. The optimum working condition for determination was found. Water and standard sample were determined with satisfactory results. The detection limit for nitrite is 0.16μg · 50ml-1,the linear range of the determination,0. 25-12. 0μg · 50ml-1,and the recoveries between 90% and 108%.
出处
《环境化学》
CAS
CSCD
北大核心
1996年第2期165-167,共3页
Environmental Chemistry
