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长期以来,进行纯铅中锌的测定,须用大量双硫腙,先行净化试剂,并用四氯化碳萃取。手续繁杂,分析时间冗长。汞膜电极阳极溶出法具有较高的灵敏度和分辨力。近年来,在痕量杂质分析的应用上又有新的发展。我们参考铜合金和海水中锌的测定,结合经典极谱法,应用75—3A型晶体管极谱仪对高纯铅中锌进行测定,获得了极为满意的结果。避免了滴汞电极所造成的水银污染和化学分析法中有机溶剂的毒害,操作简便、快速,对配合生产起了积极的作用。
For a long time, pure lead in the determination of zinc, to be large with dithizone, first purification reagent, and extracted with carbon tetrachloride. Complex procedures, long analysis time. Mercury film electrode anodic stripping method with high sensitivity and resolution. In recent years, there has been a new development in the application of trace impurity analysis. We refer to the determination of copper alloy and seawater zinc, combined with classical polarographic method, the use of 75-3A type transistor polarography instrument for the determination of zinc in high purity lead, obtained extremely satisfied results. Avoiding the mercury pollution caused by the drop mercury electrode and the poisoning of the organic solvent in the chemical analysis method, the operation is simple and fast, and plays a positive role in cooperation with the production.