| AAS法测定纯铼中痕量元素K试验研究 |
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| 引用本文： | 任慧,刘广华,李蓓.AAS法测定纯铼中痕量元素K试验研究[J].失效分析与预防,2015,10(6):389-392. |
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| 作者姓名： | 任慧 刘广华 李蓓 |
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| 作者单位： | 1. 中航工业北京航空材料研究院, 北京 100095; |
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| 摘 要： | 用AAS法测定纯铼中的痕量元素K。通过优化原子吸收测量条件,研究了硝酸用量以及基体铼对测定K含量的影响,建立了AAS法测定纯铼中痕量元素K的分析方法。结果表明,AAS法测量K的相对标准偏差不大于9.04%,测定范围为0.000 1%~0.001%,方法检出限为0.003 5μg/m L。本检测方法不仅准确可靠,而且简便快速。
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| 关 键 词： | AAS法 纯铼 钾 痕量元素 标准偏差 |
| 收稿时间： | 2015-08-10 |
Test and Determination of Trace Potassium in Pure Rhenium by AAS |
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| REN Hui,LIU Guang-hua,LI Bei.Test and Determination of Trace Potassium in Pure Rhenium by AAS[J].Failure Analysis and Prevention,2015,10(6):389-392. |
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| Authors: | REN Hui LIU Guang-hua LI Bei |
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| Abstract: | A method for the determination of trace K in pure rhenium by AAS has been developed. The measuring conditions of AAS have been optimized. The influences of the amount of HNO3 and rhenium on the determination of K in pure rhenium have been investigated. The relative standard deviations of the results obtained by AAS method are lower than 9.04%, the appropriate concentration range is 0.000 1%~0.001% and the detection limit is 0.0035 μg·mL-1. The method is not only accurate and reliable but also simple and rapid. |
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