微波消解-电感耦合等离子体发射光谱法测定合质金中的铱

摘要

建立了铅试金富集-微波消解-电感耦合等离子体原子发射光谱仪测定合质金中铱的分析方法，确定了样品溶解方法和测试条件。该方法精密度和准确度的验证实验结果表明，测定铱的相对标准偏差（RSD）小于4．90％，加入标准物质回收率为97．44％～99．62％，分析结果准确可靠。%The paper established a determination method of Ir in alloy gold by lead assay enrichment-mircowave digestion-ICP-AES and settled sample dissolution method and test conditions.The precision and accuracy verifica-tion results show that RSD is kept below 4 .90%and the recovery rate with addition of standard substance is between 97 .44 %and 99 .62 %.