| 同时萃取—原子吸收法测定锂盐中钙和镁 |
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| 引用本文： | 沈振天 陈奕. 同时萃取—原子吸收法测定锂盐中钙和镁[J]. 分析化学, 1991, 19(5): 609-611 |
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| 作者姓名： | 沈振天 陈奕 |
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| 作者单位： | 中国科学院青海盐湖研究所，中国科学院青海盐湖研究所，中国科学院青海盐湖研究所 西宁 810008，西宁 810008，西宁 810008 |
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| 摘 要： |
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| 关 键 词： | 锂盐 钙 镁 测定 PMBP 原子吸收法 |
Simultaneous Extraction-Atomic Absorption Spectrometry Determination of Calcium and Magnesium in Lithium Salts |
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| Shen Zhentian Chen Yi Nie Feng. Simultaneous Extraction-Atomic Absorption Spectrometry Determination of Calcium and Magnesium in Lithium Salts[J]. Chinese Journal of Analytical Chemistry, 1991, 19(5): 609-611 |
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| Authors: | Shen Zhentian Chen Yi Nie Feng |
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| Abstract: | Trace amount of Ca,Mg in Li_2CO_3,RbCl and CsCl was determined by flame atomic absorption spectrometry after the extraction of trace Ca and Mg in PMBP/ MIBK system at pH7.2 and back-extraction with a solution of 0.2 mol/LHCl-0.5mg Na/ ml~(-1)mg La/ml.It's an important condition to wash salts extracted with buffer solution. The present method is sensitive and simple.The standard recovery of Ca and Mg was 95% respectively,and the relative standard deviation was 2.3%. |
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| Keywords: | Atomic absorption 1-Phenyl-3-methyl-4-bcnzoylpyrazolone-5 Calcium Magnesium |
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