论文部分内容阅读
研究钼原矿的分解方法,采用等离子体原子发射光谱法(ICP-AES)测定钼原矿中钼含量。该方法相对标准偏差(RSD%)为0.66%;加标回收率为96.2~103.0%。本法可以对钼原矿中钼进行较为理想测定。目前,对钼原矿中钼的测定,通常使用碱溶法分解样品,硫脲还原-硫氰酸盐光度法测定,该方法的缺点在于操作繁琐,流程长,仪器线性范围窄,试剂种类多,劳动强度大。而ICP-AES具有检出限低,线性范围宽,精密度好,基体干扰少,分析速度快等优点。
The decomposition of molybdenum ore was studied. The content of molybdenum in molybdenum ore was determined by ICP-AES. The relative standard deviation (RSD%) of this method was 0.66%. The spiked recoveries ranged from 96.2% to 103.0%. This law can molybdenum molybdenum ore more ideal determination. At present, the determination of molybdenum in molybdenum ore is usually carried out using alkaline dissolution method and thiourea reduction-thiocyanate spectrophotometry. The disadvantages of this method are complicated operation, long process, narrow linear range of instrument, many kinds of reagents, Labor intensity. However, ICP-AES has the advantages of low detection limit, wide linear range, good precision, less matrix interference and high analysis speed.