高频感应红外吸收法测定钨精矿中硫量

On the Sulphur Content Determination in Tungsten Concentrate by High Frequency Induction Infrared Absorption

本方法采用高频感应红外吸收法测定钨精矿中硫含量。经实验确定了测定硫量的最佳分析条件:板极电流150 mA;加热时间25 s;称样量0.1～0.3 g;助熔剂的用量及加入顺序为1.0 g锡粒+0.1 g试样+1.5 g钨粒+0.5 g铁屑。该方法通过标准样品的回收实验、不同方法的对照实验、精密度实验以及实际试样的分析,证明该方法操作简单快捷,回收率达到96.90%～99.77%,相对标准偏差为0.69%～0.85%。

Based on the introduction of high frequency induction infrared absorption,this paper studies its application on the sulphur content determination in tungsten concentrate.The results show that this sulphur determination technology enjoys the advantages of simple performance and high precision.