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报道了一个不经预分离富集 ,光度法直接测定原生富铂矿及浮选精矿中的铂、钯的方法。考察了矿样分解方法 ,测定条件的选择 ,大量铁、镍、铜等 2 0余种共存元素的干扰及消除 ,测定方法的精密度和准确度等。在 SG-1 (原生富铂矿 )和 SG98-A(浮选精矿 )样品中 ,测得铂的含量为 5.96± 0 .2 7μg/ g和 2 7.9± 0 .70 μg/ g,钯的含量为 7.71± 0 .2 5μg/ g和 3 9.2± 1 .0 0 μg/ g,结果与铅试金富集法一致。
A method for direct determination of platinum and palladium in native platinum-rich ore and flotation concentrate without spectrophotometry was reported. The methods of ore sample decomposition, the selection of measurement conditions, the interference and elimination of a large amount of more than 20 kinds of coexisting elements such as iron, nickel and copper were investigated. The precision and accuracy of the determination methods were also investigated. Platinum concentrations of 5.96 ± 0.27 μg / g and 2 7.9 ± 0.70 μg / g were measured in samples of SG-1 (primary platinum-rich ore) and SG98-A (flotation concentrates) The content was 7.71 ± 0. 25μg / g and 3 9.2 ± 1. 0 0 μg / g, the results were consistent with the method of lead test gold enrichment.