电感耦合等离子体发射光谱法测定镝铁合金中非稀土杂质  

Inductively Coupled Plasma Atomic Emission Spectrometric Determination of Non-rare Earth Impurities in Dy-Fe Alloy

作　　者：金斯琴高娃[1,2] 张弘强[1,2] 蒋彩霞[1,2] 

机构地区：[1]稀土冶金及功能材料国家工程研究中心,内蒙古包头014030 [2]包头稀土研究院,内蒙古包头014030

出　　处：《稀土》2011年第6期85-88,共4页Chinese Rare Earths

摘　　要：采用电感耦合等离子体原子发射光谱法(ICP-AES)测定镝铁合金中非稀土杂质。并用基体匹配法及氟化分离法以消除干扰。测定范围为Al、Si:0.020%～0.10%;Ca,,Mg,Ni:0.0050%～0.050%;Mo,W:0.030%～0.20%。对样品测定11次,得到相对标准偏差为0.75%～4.95%,加标回收率为97.5%～104%。方法可用于镝铁合金中非稀土杂质的测定。Inductively coupled plasma atomic emission spectrometry（ICP-AES） was used to determine non rare earth impurities in Dy-Fe alloy.Matrix matching method and fluorination separation method were used to eliminate interference of Dy-Fe matrix.Determination range is 0.020～0.10% for Ai and Si,0.0050%～0.050% for Ca,Mg and Ni and 0.030%～0.20% for Mo and W.The relative standard deviation obtained by 11 repeated tests was 0.75%～4.95% and the determination recoveries was 97.5%～104%.This method could be used for the determination of non rare earth impurities in Dy-Fe alloy.

关 键 词：镝铁合金 非稀土杂质 ICP-AES法 

分 类 号：O657.31[理学—分析化学]