电感耦合等离子体原子发射光谱法测定钼铁中的铜含量

Determination of Copper Content in Ferromolybdenum by Inductively Coupled Plasma-Atomic Emission Spectrometry

采用电感耦合等离子体原子发射光谱法对钼铁中铜元素进行了分析测定。试验对酸度、分析谱线、干扰情况等方面进行了讨论，优化了仪器测量条件，其最佳仪器分析参数为：功率1250W、雾化器流量0.80L/min、辅助气流量0.2L/min、样品提升量1.5mL/min。在最佳试验条件下对钼铁标准样品进行了准确度、精密度及回收试验，试验结果表明：测量结果与认定值一致，相对标准偏差＜1.0%，回收率99%～102%。此方法操作简单、快捷，精密度、准确度好。

In this paper, a method for determination of copper content in ferromolybdenum by Inductively Coupled Plasma- Atomic Emission Spectrometry was presented. The acidity, analytical spectral line and interference conditions were analyzed; the measuring conditions were improved and the optimum-parameter of the instrument were determined as follows: power is 1250W, nebulizer flow at 0.80L/min, auxiliary gas flow at 0.2 L/min, sample flow rate at 1.5mL/min.Under the optimum test condition, the tests for precision, veracity and recovery of the standard ferromolybdenum samples were carried. The results showed that the analysis results were in line with the given values; the relative standard deviation was less than 1.0%; the recovery rate was between 99% and 102%. The method was proved to be simple, rapid, and to have high level of precision and accuracy.