鲁米诺电致化学发光机理的研究

电致化学发光（简称电致发光）是某些化学物质电解过程伴随光产生的现象·鲁米诺（Lummol，3一氨基苯一甲酸讲）在碱性水溶液是一种典型的电致发光材料·Havey，Kuwana和H。即把k。等人［’－‘］分别在二十、六十和／＼十年代对其发光进行过研究．他们都采用共存于一室的电极体系同时实现阳、阴极电解得到电致发光．HaaPakka等采用旋转环盘电极研究其发光机理．他们在盘电极上维持一定的负电位，在环电极上施加对称双阶跃电位．因此，他们认为发光过程是盘电极首先将分子氧还原成过氧化氢，通过电极的旋转，盘上产物被输送到环电极附近…

Approach to the Mechanism of the Electrochemiluminescence of Luminol in Aqueous Alkaline Solution

The electrochemiluminescence (ECL) of the luminol in aqueous alkaline solu tion has been studied using cyclic voltammetry, potential step tecdrique and time resolved UV/Vis spectroscopy. The results of the electrochemical experimens showed that the ECL of the luminol can carry out in the potential region of oxygen adsorption also and lead us suggest a new light-endtting pathway for the bonol on which the reaction between some of the luminol radical Anons and the adsorbed superokide radical sndtaneously gener ated in the anodic oxidation process yields excited 3-drinophthalate, the light emitting species. The results of the time resolved spectroscopic experiments manifested that the formation of the polymeric film produced by the luminol radical anions is one of important faetors decreasing the ECL of the luminol.