Citation: Li Jianguo , Wang Yaorong , Tang Yalian , Wei Yongqian . Determination of Trace Nitrite Based on Fluorescence Quenching With I--Rhodamine B System. Chinese Journal of Analytical Chemistry, 1997, 25(5): 590-593. [复制]
Determination of Trace Nitrite Based on Fluorescence Quenching With I--Rhodamine B System
A new fluorimetric method for the determination of trace amounts of nitrite is pro-posed.The method is based on the fluorescence quenching of rhodamine B by the reaction product of nitrite and potassium iodide.The detection limit is 3.6 μg/L.The linear range of determination is 10~120 μg/L.This method is simple, rapid and with good selectivity.It has been applied to the determination of trace nitrite in natural and mineral water with satisfactory results.