钕铁硼合金中13种元素辉光放电质谱法定量分析研究

发布时间：2017-12-27 01:17

本文关键词：钕铁硼合金中13种元素辉光放电质谱法定量分析研究　出处：《稀有金属》2016年08期 　论文类型：期刊论文

【摘要】：为了探索辉光放电质谱法(GD-MS)定量分析稀土材料中微量元素含量,建立了GD-MS法测定钕铁硼(NdFeB)合金中13种常微量元素的方法。因Nd Fe B合金尚无标准样品,制备了6块控制样品并进行均匀性检验与定值;优化了GD-MS仪器条件(放电电流、放电气体流量、离子源温度和透镜电参数)来获得足够且稳定的灵敏度与分辨率以及适宜且稳定的离子流强度。测定控制样品并建立工作曲线,测定了2块钕铁硼合金试样中的Al,V,Cr,Mn,Co,Ni,Cu,Ga,Zr,Nb,Mo,Tb,Dy共13种常微量元素的含量。结果表明:GD-MS法与电感耦合等离子体发射光谱法(ICP-AES)的测定结果相吻合,各元素的相对标准偏差(RSD)都小于3%,该准确度与精密度良好,能够对稀土材料中稀土和非稀土元素的准确测定。
[Abstract]:In order to explore the quantitative analysis of trace elements in rare earth materials by glow discharge mass spectrometry (GD-MS), a GD-MS method for the determination of 13 kinds of trace elements in Nd-Fe-B (NdFeB) alloy has been established. For Nd Fe B alloy is the standard sample, preparation of 6 control samples and the homogeneity test and calibration of GD-MS instruments; optimal conditions (discharge current, discharge gas flow, ion source temperature and lens electrical parameters) to obtain the sensitivity and the resolution of sufficient and stable and suitable and stable ion current intensity. The control samples were set up and working curves were set up. The contents of Al, V, Cr, Mn, Co, Ni, Cu, Ga, Zr, Nb, Mo, Nb and 13 kinds of common trace elements in 2 Nd-Fe-B alloy samples were determined. The results showed that the results of GD-MS and inductively coupled plasma atomic emission spectrometry (ICP-AES) coincided, and the relative standard deviations (RSD) of all elements were all less than 3%. The accuracy and accuracy of the method were good, which could be used for the accurate determination of rare earth elements and rare earth elements in rare earth materials.
【作者单位】：北京有色金属研究总院分析测试研究所;
【基金】：国家科技部创新方法工作专项项目(2012IM030500)资助
【分类号】：TG115.33
【正文快照】： 钕铁硼永磁材料因具有高剩磁、高矫顽力和高磁能积而被称为“磁王”,机械加工性能也较好,是当前性价比最高、应用最广和发展速度最快的商品化磁性材料[1-2]。钕铁硼永磁材料中常添加Al,V,Cr,Co,Ni,Cu,Ga,Zr,Nb,Mo,Tb,Dy等元素用于提高材料的矫顽力、居里温度及稳定性等,常微量

【相似文献】