This paper deals with the fire assay concentration and ICP spectrographic methods for analyzing trace platinummetals and gold in copper and nickel sulphide minerals. Samples were treated by sulphur and stibium assay concentration.The stibiuni buttons were subjected to cupellation until a diameter of some 1 .5 mm was obtained.Some stibium powder was added to the buttons, and ground to 200-300 mesh.They were analyzed directly with an ICP automatic spectromet- er.
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周维新,1983,试金富集ICP粉末法分析矿物中微量铂族元素和金[J].岩石矿物学杂志,2(4):300~303.,1983,ICP Spectrographic Determination of Platinum Metals and Gold by Using Powder Sample after Fire Assay Concentration[J]. Acta Petrologica et Mineralogica,2(4):300~303.