ICP—AES测定钕铁硼永磁材料中的Nd、Dy、Pr、La、Co、B和Al

Determination of Nd, Dy, Pr, La, Co, B and AI in NdFeB Permanent Magnet Materials by ICP-AES

建立了电感耦合等离子体-原子发射光谱法（ICP-AEs）同时、快速测定钕铁硼永磁材料中Nd、Dy-Pr、La、Co、B和Al含量的方法。结果表明：采用浓硝酸低温消解，消解快速、完全，然后用ICP-~S测定Nd、Dy、Pr、La、Co、B和朋，相关系数，．可达0．9999以上，加标回收率92%-107％，相对标准偏差小于5．0％。方法快速简便、检出限低、精密度好，结果令人满意。

This paper studied a method that elements of neodymium, dysprosium, praseodymium, lanthanum, cobalt, boron and aluminum in NdFeB permanent magnet materials were determined by inductively coupled plasma atomic emission spectrometry （ICP-AES）. The results showed that determination of those elements by ICP-AES, correlation coefficient may reach above 0.9999. The recovery rate was between 92%--107%. And the relative standard deviation is less than 5.0%. The method is quick and easy, low detection limit, good precision. The result is satisfactory.