Studies on X-Ray Fluorescence Analysis of Sulfide Ores by Solution Technique (). Analysis of Iron, Copper and Cobalt

[摘要] Utilyzing the solution prepared for the sulfur determination, the amounts of iron, copper and cobalt in the sulfide ore were determined by X-ray fluorescence spectrometry. The samples were dissolved with the mixed solutions of Br2 and HNO3, and a major constituent of SiO2 was repelled from the solution by HF treatment several times. The analytical results agreed with the data obtained by conventional methods within ¡¾1.5% for Fe of the range of 20 to 50%, ¡¾1.0% for Cu of 10 to 15%, and ¡¾0.4% for Co of 1 to 5%. The present method was tolerably found to be reproducible.

[学科分类] 化学（综合）