百里香酚兰又称麝香草酚兰,是一重要的酸碱指示剂。Ghoneim等曾发现在pH2—11.5间百里香酚兰产生两个1电子还原波。金纳淑等曾利用百里香酚兰与某些金属离子形成络合物比简单金属离子的电极反应可逆性好,制定了一个用方波极谱法测定金属离子的方法,提高了分析灵敏度。本文用普通极谱、脉冲极谱、循环伏安法研究了百里香酚兰的电还原,提出一电还原机理。 Thymol blue, also known as thymol blue, is an important acid-base indicator. Ghoneim et al. Found that there are two 1-electron reduction waves of thymol blue at pH 2-11.5. Jin Na Shu et al. Have used thymol blue and some metal ions to form complex than the simple metal ion electrode reaction reversible, developed a method for the determination of metal ions by square wave polarography method to improve the analysis sensitivity. In this paper, the polarographic, pulse polarography, cyclic voltammetry was used to study the electroreduction of thymol blue and to propose an electroreduction mechanism.