摘要
近年来，极谱分析特别是催化极谱和阳极溶出伏安法，由于其灵敏度高．设备简单，在微量和超微量分析中得到普遍重视，并广泛用于各种实际工作．利用极谱方法研究水溶液体系中元素的存在形态和动力学过程的工作，亦已逐渐开展。但是，当溶液中电解质含量过低，例如在有机溶液、
A potentiostat for Compensating potential drop as iR and electrode polarization in voltammetry have been constructed from operational amplifier. It it conveniently used for the three-electrodes voltammetry when measurements have to proceed in very dilute solutions, organic medium, or have to operate with micro-electrodes. The operational amplifier circuit of the potentiostat and experimental result oE three-electrodes system compared with two-electrodes system were detailed.
