| 电感耦合等离子体原子发射光谱法测定稀土钢中微量镧、铈 |
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| 引用本文： | 郭宏杰,李 辉,张 庸.电感耦合等离子体原子发射光谱法测定稀土钢中微量镧、铈[J].中国无机分析化学,2021,11(3):75-78. |
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| 作者姓名： | 郭宏杰 李 辉 张 庸 |
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| 作者单位： | 中国科学院金属研究所,中国科学院金属研究所,中国科学院金属研究所 |
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| 摘 要： | 采用稀王水溶解样品,选择La408.672 nm、Ce456.236nm为分析线,建立了电感耦合等离子体原子发射光谱法(ICP-OES)测定稀土钢中微量镧、铈的方法。结果表明,各元素校准曲线线性良好,相关系数可达0.99999；方法测定范围为：0.0001%～0.10%。检出限为：镧0.00002%,铈0.00006%。按照实验方法测定标样中镧、铈,结果的相对标准偏差RSD(n=8)为2.18%、1.68%。
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| 关 键 词： | 电感耦合等离子体原子发射光谱法 稀土钢 镧、铈 |
| 收稿时间： | 2020/9/28 0:00:00 |
| 修稿时间： | 2020/10/10 0:00:00 |
Determination of trace lanthanum and cerium in rare earth steel by inductively coupled plasma optical emission spectrometry |
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| guohongjie,lihui and zhangyong.Determination of trace lanthanum and cerium in rare earth steel by inductively coupled plasma optical emission spectrometry[J].Chinese Journal of Inorganic Analytical Chemistry,2021,11(3):75-78. |
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| Authors: | guohongjie lihui and zhangyong |
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| Institution: | Institute of Metal Reasearch,Chineses Academy of Science,Institute of Metal Reasearch,Chineses Academy of Science,Institute of Metal Reasearch,Chineses Academy of Science |
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| Abstract: | The sample was dissolved in 3 ml hydrochloric acid and 1 ml nitric acid, and La408.672 nm and Ce 456.236 nm were selected as the analytical lines. A method for the determination of trace lanthanum and cerium in rare earth steel by inductively coupled plasma optical emission spectrometry (ICP-OES) was established. The results show that the calibration curve of each element has good linearity, the correlation coefficient can reach 0.99999, and the determination range is 0.0001% ~ 0.10%. The detection limit was 0.00002% for La and 0.00006% for Ce. The relative standard deviation (RSD) (n = 8) of lanthanum and cerium in standard samples were 2.18% and 1.68% respectively. |
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| Keywords: | inductively coupled plasma optical emission spectrometry rare earth steel La Ce |
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