The analytical lines were Fe 238.204 nm,Si 251.611nm,Cr 205.560 nm, Mg 279.553 nm and Mn 260.568 nm respectively ,the effects of matrix and coexist elements on the determination were dissolved.The matrix effect was corrected by matrix matching.The detection limit is 0.0006-0.008 ug/ml,the recovery rate is from 90% to 120%, the RSDs are less than 10%.%介绍了采用电感耦合等离子体发射光谱法(ICP-AES)测定Ti-45Nb合金中杂质元素铁、硅、铬、镁、锰的方法,样品采用盐酸、氢氟酸加硝酸溶解,溶解温度控制在室温或水浴70℃以下.进行了仪器工作参数和待测元素分析线的选择试验,确定了仪器最佳工作条件, 考察了合金基体钛和共存元素铌对待测元素的影响,确定了各待测元素分析线分别为Fe238.204 nm ,Si251.611 nm,Cr205.560 nm,Mg279.533nm,Mn260.568nm.通过基体匹配消除基体的影响,实现了用电感耦合等离子体原子发射光谱法测定钛铌合金中铁、硅、铬、镁、锰元素的含量.进行了加入回收试验,回收率在90~120%之间,方法的检出限是0.0006 ~0.008μg/mL,相对标准偏差小于10%.
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