提出了在盐酸、磷酸、抗坏血、酸碘化钾、四乙基碘化铵体系中,进行水样中微量铅、镉的一次取样示波极谱测定方法,进行了条件试验,其它离子的干扰试验,拟定了最佳测定条件,试验了铅、镉的线性范围,以及灵敏度。在选定的底液中,置起始电位-0.40伏扫描,于-0.54伏处测量铅峰高、-0.70伏处测量镉峰高,只需一次扫描,同时可完成铅、镉波高的测量,达到了简便、快速、准确的目的。 A method for the determination of trace lead and cadmium in water sample by hydrochloric acid, phosphoric acid, ascorbic acid, acid potassium iodide and tetraethylammonium iodide system was proposed. The conditions of the method were tested and the interference of other ions Test, the best determination of the conditions, the test of lead, cadmium linear range, and sensitivity. In the selected base solution, set the initial potential of -0.40 volts scan, measured at -0.54 volts lead peak height, -0.70 volts measured cadmium peak height, only a scan, at the same time be completed lead and cadmium wave height measurement , Reached a simple, fast, accurate purpose.