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| Determination of lanthanum in molybdenum lanthanum alloy by inductively coupled plasma atomic emission spectrometry |
| Received:November 01, 2019 Revised:November 20, 2019 |
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| DOI：doi:10.3969/j.issn.2095-1035.2020.04.014 |
| KeyWord:inductively coupled plasma atomic emission spectrometry； molybdenum lanthanum alloy；lanthanum ；matrix matching method. |
| Author | Institution |
| wangxiaojing |
西安汉唐分析检测有限公司 |
| LIU Houyong |
西安汉唐分析检测有限公司，西安 |
| YANG Junhong |
西安汉唐分析检测有限公司，西安 |
| ZHAO Huanjuan |
西安汉唐分析检测有限公司，西安 |
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| Abstract: |
| A method for the determination of lanthanum in molybdenum lanthanum alloy by inductively coupled plasma atomic emission spectrometry (ICP-AES) was established. The molybdenum lanthanum alloy samples was dissolved with hydrochloric acid and nitric acid. 379.478 nm was selected as the analysis line of lanthanum, and the interference of matrix molybdenum was eliminated by matrix matching method. The linear correlation coefficient is above 0.999, the lower limit of quantification is 0.048%, the relative standard deviation (RSD, n = 11) is less than 3%, and the recovery is 93.00% ~ 105.00%. The method is rapid and accurate. It can meet the requirements of the determination of molybdenum lanthanum alloy samples in actual production. |
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