【摘要】 <正> 前言ICP光量计（多道光谱仪）在高纯稀土氧化物分析中的应用的报导还较少,本文将在以前摄谱分析法工作的基础上,对ICAP9000型多道光谱仪的稀土通道用于La₂O₃、CeO₂、Pr₆O₁₁、Nd₂O₃、Sm₂O₃、Y₂O₃等高纯稀土氧化物或它们的杂质富集物中15个稀土杂质元素同时测定的能力（主要是校正光谱干扰效应的能力及对各稀土杂质元素的检出能力）进行评价。更多还原

【Abstract】 This article has evaluated the ability of simultaneous determination of 15 rare earth impurities in La₂O₃, Ce O₂, Pr₆O₁₁, Nd₂O₃, Sm₂O₃ and Y₂O₃ or in the impurity concentrates in them with the rare earth element channals of ICAP9000 multi-channal spectrometer, especially the correction ability of the spectral interferences and the detection ability of the rare earth elements. A modified K-coefficient correction method has been used, which successfully corrected the spectral interferences due to the rare earth matrix. The recoveries of the impurities are 90—110% and the percentage relative standard deviations are less than 3.0% at the concentrations of 10 mg/ml and 10 ug/ml for the matrix and impurities respectively. The detection limits are different with different matrix. At the concentration of 10 mg/ml for matrix, Y₂O₃, La₂O₃, CeO₂, Pr₆O₁₁, Nd₂O₃ and Sm₂O₃ respectively, the to’al detection limits（ΣC_L） of the impurities are 0.289, 1.981, 1.457, 5.945, 1.326 and 1.755 ug/ml respectively.更多还原