优质钨精矿为我国首次产品,它含钨高(Wo_3>70%),必测杂质元素量低微。对这些杂质元素的测定,迄今尚无详细的资料报导。本文探讨了用空气—乙炔火焰原子吸收法连续测定其中部分杂质元素—铜、铅、锌和铋的工作条件,详细研究了基本元素钨、共存物质及无机酸等的干扰情况及消除方法,制定了相应的准确、快速、经济的分析方法。 High-quality tungsten concentrate for the first time in China, which contains high tungsten (Wo_3> 70%), the measured impurity elements will be low. The determination of these impurity elements, so far no detailed information reported. In this paper, the working conditions of some impurities such as copper, lead, zinc and bismuth were continuously measured by air-acetylene flame atomic absorption spectrometry. The interferences and elimination methods of basic elements such as tungsten, coexisting substances and inorganic acids were studied in detail. The corresponding accurate, rapid and economic analysis.