摘要
本文报道了亚硝酸根离子可以对Ｃｅ（Ⅳ）－罗丹明Ｂ化学发光体系产生抑制作用的实验事实，建立了测定痕量亚硝酸根离子的化学发光新方法．检出限为１．４×１０－８ｍｏｌ／Ｌ；线性范围为１．０×１０－７～４．０×１０－５ｍｏｌ／Ｌ．用于实际水样中亚硝酸根离子的测定，结果满意．
When nitrite was added into the chemiluminescent system of Ce(Ⅳ) rhodamine B, it could inhabit chemiluminescent intensity of the system. A new chemiluminescence method for determination of trace nitrite was given. The detection limit of the method is 1.4×10 -8 mol/L, and the linear range of 1.0×10 -7 ～4.0×10 -5 mol/L are obtained. This method has been applied to the determination of trace nitrite in water with satisfactory results.
