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无汞碱锰电池用EMD中微量钴的测定
Determination of cobalt in electrolytic manganese dioxide for mercury-free alkaline Zn/MnO2 battery
【摘要】 研究了在硫氰酸铵—盐酸体系中,用甲基异丁基甲酮(MIBK)萃取富集钴的硫氰化物络合物,与大量的锰分离,有机相用火焰原子吸收光谱法测定钴。方法的选择性好,灵敏度较高,测定范围:0 2~20μg/g。
【Abstract】 In the system of ammonium thiocyanate—hydrochloric,the Co(Ⅱ) ions were separated by extraction of its thiocyanate anionic complexes with methyl isobutyl ketone (MIBK) from abundance of manganese. Cobalt in organic phase was determined by flame atomic absorption spectrometry. The method had good selectivity and high sensitivity. The range of determination of the method was 0.2~20?μg/g.
【关键词】 电解二氧化锰;
钴;
萃取;
火焰原子吸收光谱法;
【Key words】 electrolytic manganese dioxide; cobalt; extraction; flame atomic absorption spectrometry;
【Key words】 electrolytic manganese dioxide; cobalt; extraction; flame atomic absorption spectrometry;
【基金】 江南大学2003年资助项目
- 【文献出处】 电池 ,Battery Bimonthly , 编辑部邮箱 ,2004年02期
- 【分类号】TM911.1
- 【下载频次】80