| 冷焰ICP-MS法测定高纯稀土氧化物中铁和钙的研究 |
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| 引用本文： | 刘鹏宇,刘文华,邵光玓.冷焰ICP-MS法测定高纯稀土氧化物中铁和钙的研究[J].分析试验室,1999,18(2):74-76. |
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| 作者姓名： | 刘鹏宇 刘文华 邵光玓 |
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| 作者单位： | 1. 北京有色金属研究总院,北京100088
2. 北京科技大学化学系 |
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| 摘 要： | 用冷焰技术对高纯稀土氧化物中Ｆｅ和Ｃａ的分析方法进行了研究。估算了测定范围和检出限，探讨了内标元素对基体影响的校正作用，测定了加标回收率，对半定量法（ＴＱ）和定量法（ＱＡ）的结果作了比较。表明冷焰条件下，痕量Ｆｅ的测定是可行的，但Ｃａ的测定结果仍不理想；ＱＡ法明显优于ＴＱ法。
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| 关 键 词： | ICP-MS法 冷焰技术 高纯稀土 铁 钙 |
| 文章编号： | 1000-0720(1999)
02-074-03 |
| 修稿时间： | 1998-04-29 |
Study on Analytical Method for Iron and Calcium in High-Purity Rare Earth Oxides by ICP-MS using Cold Plasma Technique |
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| LIU Peng-yu,LIU Wen-hua,SHAO Guang-di.Study on Analytical Method for Iron and Calcium in High-Purity Rare Earth Oxides by ICP-MS using Cold Plasma Technique[J].Chinese Journal of Analysis Laboratory,1999,18(2):74-76. |
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| Authors: | LIU Peng-yu LIU Wen-hua SHAO Guang-di |
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| Abstract: | The
analytical method for iron and calcium in high purity rare earth oxides was studied by ICP MS
using cold plasma technique.The linear calibration ranges and detection limits were estimated.
The calibrated results of internal standard elements for the matrix effect was investigated using
semiquantitative method(TQ) and quantitative method(QA) .The results obtained from the
analysis and the recovery test for the standard samples have proved that the method for
analysis of trace iron is feasible with cobalt as an internal standard element;but is still
unacceptable for the determination of calcium in high purity rare earth oxides;and QA method is
preferable to TQ method obviously |
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| Keywords: | Inductively coupled plasma mass spectrography(ICP MS) cold plasma technique high purity rare earth oxides iron calcium |
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