提出了一种用差示脉冲阳极溶出伏安法(DPASV)简便、快速、准确测定铁矿样中重金属(铜、铅、镉、锌)的方法。用浓盐酸分解试样,用乙醚萃取分离铁,对酸性水提出物进行伏安法测定。4种金属的回收率在93.5%～101.0%之间。铜、铅、镉、锌的相对标准偏差分别为0.72%、0.48%、0.64%和0.47%。在95%置信度下,临界值|t|表明本法没有系统误差。 A simple, rapid and accurate method for the determination of heavy metals (copper, lead, cadmium, zinc) in iron ore samples by differential pulse anodic stripping voltammetry (DPASV) was proposed. The sample was decomposed with concentrated hydrochloric acid and iron was extracted with ether. The acidic water extract was subjected to voltammetry. The recoveries of the four metals ranged from 93.5% to 101.0%. The relative standard deviations of copper, lead, cadmium and zinc were 0.72%, 0.48%, 0.64% and 0.47%, respectively. At 95% confidence, the critical value | t | shows that there is no systematic error in this method.