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Determination of Magnesium in Ni-Mg Alloy by Flame Atomic Absorption Spectrometry Using Hyposensitive Line |
Received:September 24, 2011 Revised:December 31, 2011 |
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DOI:10.3969/j.issn.2095-1035.2012.01.0016 |
KeyWord:hyposensitive line; Ni-Mg alloy; Mg; atomic absorption spectrometry |
Author | Institution |
LI Tuo |
西部金属材料股份有限公司 理化检验中心 陕西 宝鸡 |
YANG Junhong |
西部金属材料股份有限公司 理化检验中心 陕西 宝鸡 |
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Abstract: |
The magnesium in Ni-Mg alloy was determined by flame atomic absorption spectrometry using the hyposensitive line of magnesium (202.5 nm) as the analytical line. The sample was dissolved in HNO3(1:1). SrCl2 was added as a releaser to the sample solution to eliminate the influence of the co-existing elements. Under the optimal condition, the relative standard deviation of this method is less than 3% and the rate of recovery is in the range of 95.0%~105.5%. The results show that by using the hyposensitive line of magnesium both accuracy and precision can meet the requirement for routine quantitative analysis of magnesium in Ni-Mg alloy. |
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