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本文探讨了铋铅在酒石酸－琥珀酸－盐酸肼底液中阳极溶出半微分极谱行为；铋铅均有明晰的阳极洛出峰，其负峰电位分别为－0.09伏（对饱和甘汞电极，以下同）和-0.49伏。 实验结果表明：在上述底液中，可以利用控制电位电解法分离除去大量的铜，并直接进行铋铅的半微分电分析法测定。所以本方法可用之测定高纯铜中痕量铋铅，其它杂质不干扰。铋铅的回收率分别为103％和105％变动系数小于±10％。 方法灵敏度高，分辨率好，仪器设备简单，测定方法快速。
In this paper, the semi-differential polarographic behavior of bismuth-lead in the tartaric acid-succinic acid-hydrazine hydrate was studied. The bismuth-lead has a clear positive anodic extraction peak with negative peak potentials of -0.09 V (for saturated calomel electrode , The same below) and -0.49 volts. The experimental results show that in the above-mentioned bottom liquid, a large amount of copper can be separated and removed by the control potential electrolysis method, and the bismuth-lead semi-differential electric analysis method is directly used for the determination. Therefore, this method can be used to determine trace amounts of bismuth in high purity copper lead, other impurities do not interfere. The bismuth-lead recoveries were 103% and 105% respectively, with a coefficient of variation of less than ± 10%. The method has the advantages of high sensitivity, good resolution, simple equipment and rapid measurement method.