摘要
研究了形成碱性品红亚硝酸根-8-羟基喹啉显色体系的重氮偶联反应,所生成的偶氮染料在490um处有最大吸收NO2分别在0.2-30μg/25 mL范围内服从比尔定律,从而建立了测定亚硝酸根的新方法.用于实际水样的测定,结果满意.
The diazo-coupling reactions between fuchsin-nitrite and 8-hydroxyquinoline are investigated. The azo-dye has a maximum absorbance at 502 nm. The density of NO2- is coincident with Beer's law in the range of 0 .2-30μg/25 mL so that a new method of determining NO2 -- is set up. This method is applied to the determination of nitrite in water with satisfactory results.
出处
《吉林化工学院学报》
CAS
2001年第4期31-33,共3页
Journal of Jilin Institute of Chemical Technology
基金
陕西省自然科学基金资助项目(99H11)