蒋国芬.三元素氢氧化物中镍钴锰含量的测定[J].中国无机分析化学,2017,7(3):42-45.
三元素氢氧化物中镍钴锰含量的测定
Determination of Ni,Co and Mn content in ternary hydroxides
投稿时间:2017-02-17  最后修改时间:2017-04-10
DOI:doi:10.3969/j.issn.2095-1035.2017.03.011
中文关键词:  三元前驱体  ICP-AES  EDTA滴定法      
英文关键词:the ternary precursor  ICP-AES  EDTA titration  nickel  cobalt  manganese
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作者单位
蒋国芬 浙江华友钴业股份有限公司,浙江 桐乡,314500
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中文摘要:
      采用仪器分析方法和化学分析方法相结合测定三元前驱体Ni0.33 Co0.33Mn0.33(OH)2中镍、钴、锰主含量,分别采用电感耦合等离子体原子发射光谱(ICP-AES)内标法测定镍、钴、锰的摩尔比例,EDTA滴定法测定镍、钴、锰的摩尔总量,计算得到各元素的含量。通过优化实验条件,进行了准确度和精密度实验,加标回收率为99.2%~101%,相对标准偏差小于0.65%。方法准确、快速,已用于实际的检测工作中。
英文摘要:
      Nickel (Ni), cobalt (Co) and manganese (Mn) content in ternary precursor Ni0.33 o0.33Mn0.33(OH) 2 was determined by instrumental and chemical analyses. The?molar proportion of Ni, Co and Mn was determined by ICP-AES and the total content of the three elements was determined by EDTA titration. Then Ni, Co and Mn content was calculated. Higher precision was obtained by optimizing the experimental conditions. A recovery between 99.2% and 101% was achieved, and the relative standard deviation was lower than 0.65%. The established method is accurate, fast and has been applied to practical analysis.
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