电感耦合等离子体质谱法测定稀土镁球墨铸铁中的稀土元素  

Determination of rare earths in rare-earths-magnesium nodular cast iron by inductively coupled plasma mass spectrometry

作　　者：徐鸿志[1] 陈志伟[1] 刘东武[1] 

机构地区：[1]山东理工大学分析测试中心,山东淄博255049

出　　处：《化学试剂》2010年第7期617-619,共3页Chemical Reagents

基　　金：山东省科技攻关项目(2007GG10003047)

摘　　要：介绍了采用电感耦合等离子体质谱测定稀土镁球墨铸铁中的15种稀土元素含量的方法。敞口式容器及混合酸消解程序被用于铸铁样品的分解。在优化的实验条件下,方法的定量测定限为0.20-2.17 ng/g,标准加入回收率在93.2%-107.4%之间,相对标准偏差（n=5）小于12%。This article introduced a method for the determination of rare earths in rare-earths-magnesium nodular cast iron by inductively coupled plasma mass spectrometry（ICP-MS）,while a digestion procedure with mixed acid solution was adopted for dissolution of the sample in an uncovered vessel.Under optimal experimental conditions,the determination limits were 0.20～2.17 ng/g of nodular cast iron with the relative standard deviations being less than 12% and recoveries ranging from 93.2% to 107.4% for 15 rare earth elements.

关 键 词：稀土镁 球墨铸铁 稀土元素 电感耦合等离子体质谱 

分 类 号：O657.62[理学—分析化学]