火焰原子吸收光谱法测定高纯碳酸锂中多种杂质元素
FAAS Method for Determination of Impurities in High Purity Lithium Carbonate
摘 要
采用火焰原子吸收光谱法测定了高纯碳酸锂中多种杂质元素(包括锌、钠、铅、钾、铁、钙及镁)的含量.结果表明:测定上述各元素的相对标准偏差(n=9)在1.9%~4.4%之间.各元素的工作曲线具有良好的线性关系,相关系数在0.994 3至0.999 8之间.用标准加入法做回收试验,测得平均回收率在98.3%至101.0%之间.
高纯碳酸锂
杂质元素
Flame atomic absorption spectrometry (FAAS)
High purity lithium carbonate
Impurity-elements
Abstract
FAAS method was applied to the determination of metal impurities (in cluding Zn,Na,Pb,K,Fe,Ca and Mg) in high purity lithium carbonate.As shown by experimental results,values of RSD′s (n=9) obtained in the determination of the above mentioned impurity-elements,were in the range of 1.9%-4.4%.Working curves for these elements had fine linearity with correlation coefficient ranged from 0.994 3 to 0.999 8.Test for recovery was performed by standard addition method,giving results in the range of 98.3%-101.0%.
中图分类号 O657.31
所属栏目 工作简报
基金项目 国家科技攻关计划课题(2001BA602B-01)
收稿日期 2006/3/17
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备注戴志锋(1979- ),男,湖北麻城人,硕士,从事锂资源的高值化产品、系列化产品的研究与开发.
引用该论文: DAI Zhi-feng,XIAO Xiao-ling,LI Fa-qiang,ZHU Zeng-hu,MA Pei-hua. FAAS Method for Determination of Impurities in High Purity Lithium Carbonate[J]. Physical Testing and Chemical Analysis part B:Chemical Analysis, 2007, 43(9): 744～746
戴志锋,肖小玲,李法强,祝增虎,马培华. 火焰原子吸收光谱法测定高纯碳酸锂中多种杂质元素[J]. 理化检验－化学分册, 2007, 43(9): 744～746
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参考文献
【1】Niwa Kenjl,Ichikawa Ichiro,Suzuki Yutaka.Production of high-purity lithium carbonate:Japan,JP62161973[P].1987-07-17．
【2】原子吸收光谱分析编写组.原子吸收光谱分析[M].北京:地质出版社,1987:80．
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【2】原子吸收光谱分析编写组.原子吸收光谱分析[M].北京:地质出版社,1987:80．
【3】姚俊,姚祖凤,肖卓炳,等.原子吸收光谱法测定四氧化三锰产品中多种杂质元素[J].化学世界,2000,41(8):439．
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