钌(Ⅱ)-邻菲咯啉-有机酸-Ce(Ⅳ)偶合化学发光反应及其应用研究

A Study on Coupled Chemiluminescence Reaction of Ru(1, 10 - phenanthroline)_3^(2+)-Organic Acid - Ce(IV)

本文以16种有机酸为研究对象,系统地研究了钌(Ⅱ)-邻菲咯琳-有机酸-Ce(Ⅳ)偶合化学发光反应.结果表明,化学发光强度与含有羰基或羟基的有机酸的浓度在一定浓度范围内具有良好的线性关系,据此建立了羰基和羟基羧酸的化学发光分析法,提出了偶合化学发光反应机理.方法用于草酸二乙酯和人体尿液中草酸的测定,获得满意的结果.

Reactions of 16 organic acids with Ru(phen)32+ (phen= 1,10 - phenanthroline) and Ce (IV) were examined for chemiluminescence(CL)light emission. Organic acids with C = O or OH group were found capable of increasing the CL light emission. CL intensity were linearly related to the concentration of them. The method has been satisfactorily applied to determine free oxalic acid in diethyl oxalate and oxalate in human urine, A coupled CL reaction echanism is presented.