| ICP–AES法测定金属钼中微量Fe,Ni |
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| 引用本文： | 李汉超. ICP–AES法测定金属钼中微量Fe,Ni[J]. 化学分析计量, 2014, 0(4): 73-75 |
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| 作者姓名： | 李汉超 |
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| 作者单位： | 中国航空工业集团公司北京航空材料研究院,北京100095 |
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| 摘 要： | 采用ICP–AES法测定金属钼中Fe,Ni含量,以盐酸–硝酸–氢氟酸溶解样品,试验了基体元素和共存元素对Fe,Ni的光谱干扰,Fe,Ni的分析谱线分别为238.204 nm,341.477 nm。测定Fe,Ni的线性范围均为0.001%~0.01%,线性相关系数分别为0.999 4,0 999 8,检出限分别为0.000 01%,0.000 04%。方法的加标回收率为95.7%~115.0%,测定结果的相对标准偏差为2.36%~17.82%(n=8)。该方法快速、简便,能够满足金属钼中含量范围为0.001%~0.01%的Fe,Ni元素的检测要求。
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| 关 键 词： | 钼 铁 镍 ICP–AES |
Determination of Fe and Ni in Molybdenum by ICP-AES |
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| Li Hanchao. Determination of Fe and Ni in Molybdenum by ICP-AES[J]. Chemical Analysis And Meterage, 2014, 0(4): 73-75 |
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| Authors: | Li Hanchao |
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| Affiliation: | Li Hanchao (AVIC Beijing Insititute of Aeronautical Materials, Beijing 100095, China) |
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| Abstract: | The method for simultaneous determination of Fe and Ni in molybdenum by ICP–AES was presented. Samples were dissolved by HCl–HNO3–HF and the spectral interferences of Fe and Ni from matrix element and coexist elements were studied. The analytical lines were 238.204 nm for Fe and 341.477 nm for Ni. The linear range was 0.001%–0.01% with relative coefficient of 0.999 4 and 0.999 8,respectively. The detection limits were 0.000 01% for Fe and 0.000 04%for Ni. The recovery of the method was 95.7%–115.0%,and relative standard deviation was 2.36%–17.82%（n=8）. The method is simple,fast,and it is suitable for the determination of Fe and Ni in molybdenum which content is in the range of 0.001%–0.01%. |
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| Keywords: | molybdenum iron nickel ICP-AES |
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