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锂电池正极材料镍钴锰酸锂中钴含量的测定

Ruihong HUANG,Yingquan YANG,Huacheng LI,Chunxia LI,Chunfei WANG

China's Manganese Industry（2018）

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Abstract
钴和亚硝基R盐能在pH =5.5的乙酸—乙酸钠缓冲液中生成可溶性红色络合物,在吸收波长为530 nm下,用基体匹配—高浓度示差光度法分析镍钴锰酸锂中钴的含量.并对该方法的分析条件进行了优化.实验表明:该方法测定锂电池正极材料镍钴锰酸锂中的钴回收率为95.19％～98.30％,相对标准偏差不大于0.605％,该方法操作简单,分析速度快,结果令人满意.
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