石煤钒矿中五氧化二钒容量法测定及量值溯源研究

摘要

Through the tracing and calibration of real quality value, including different samples decomposition method in compared determination, multiple tests, we have carried out a standard accession ofrecycling test in different analysis method results than peer means to determine vanadium pentoxide in stone coal.The result shows that it is of simple, accurate measurement and high precision to use ammonium ferrous sulfate volumetric method for the determination of stone coal-vanadium pentoxide in vanadium ore samples.To get the accurate mass percentage of vanadium pentoxide in the sample results, we must master the volumetric method for the determination of the critical technology.%通过标准物质量值溯源与校准、不同样品分解方法对比测定、倍比试验、标准加入与回收试验、不同分析方法结果比对等手段,开展了石煤中五氧化二钒容量法测定研究.结果表明:采用硫酸亚铁铵容量法测定石煤钒矿样品中的五氧化二钒,具有操作简便、结果准确和测定精密度高等优点,但要获得样品中准确的五氧化二钒质量百分数结果,必须熟练掌握容量法测定的技术关键.