我们研究了青铜中铁和铝的电流滴定。此方法的要点如下:二价铁离子用重铅酸钾溶液滴定;铝离子用氟化钠溶液滴定,并以三价铁离子作指示剂。在二者情况下,按铁离子扩散电流的消失来断定反应的终了。我们建议的方法比现有文献中的一些方法更为简单,而且能得到满意的结果。用以前提到过的装置[注]进行工作。用饱和甘汞半电池作为比较电极;用旋转的小铂电极作为指示电极。在外加电压为+1.0伏特时(对饱和甘汞电极 We studied the current titration of iron and aluminum in bronze. The main points of this method are as follows: Ferrous iron is titrated with potassium lead titanate solution; Aluminum ions are titrated with sodium fluoride solution and ferric ion is used as indicator. In both cases, the disappearance of the diffusion current of iron ions concludes the reaction. Our proposed method is simpler than some of the methods in the literature and gives satisfactory results. Work with the device [Note] mentioned earlier. A saturated calomel half-cell was used as a comparison electrode; a small rotating platinum electrode was used as an indicator electrode. With an applied voltage of +1.0 volts (for saturated calomel electrode