无机盐工业
主管:中海油天津化工研究设计院有限公司
主办:中海油天津化工研究设计院有限公司
   中海油炼油化工科学研究院(北京)有限公司
   中国化工学会无机酸碱盐专业委员会
ISSN 1006-4990 CN 12-1069/TQ

无机盐工业 ›› 2014, Vol. 46 ›› Issue (4): 67-.

• 论文 • 上一篇    下一篇

ICP法测定锰酸锂中铁含量方法改进

于晓微,付春明,张晓波,张春丽   

  1. 中海油天津化工研究设计院,天津 300131
  • 出版日期:2014-04-10 发布日期:2014-04-08

Improvement of determination of iron content in LiMn2O4 by ICP method

 YU  Xiao-Wei, FU  Chun-Ming, ZHANG  Xiao-Bo, ZHANG  Chun-Li   

  1. CNOOC Tianjin Chemical Research & Design Institute,Tianjin 300131,China
  • Online:2014-04-10 Published:2014-04-08

摘要: 电感耦合等离子体发射光谱法(ICP法)测定锂离子电池正极材料锰酸锂中铁含量,通过采用标准加入法代替标准曲线法以消除基体干扰、通过选择合适的谱线消除背景干扰以及称取适量的样品来保证测量的准确。用改进后的ICP法得到的测量结果与分光光度法测量结果进行比较,可知ICP法测定锰酸锂中铁含量方法可行、测定结果可信。

关键词: 锰酸锂, ICP法, 分光光度法, 铁含量测定

Abstract: The iron content in LiMn2O4 for lithium-ion battery cathode material is determined by ICP method which eliminates the matrix interference by using standard addition method instead of standard curve method and background interference by choosing the appropriate spectral line,and ensures the measurement accuracy by taking an appropriate amount of samples.Through the comparison of the measurement results between the improved ICP method and spectrophotometry,it indicates that this method is feasible and the measurement results are reliable.

Key words: LiMn2O4, ICP method, spectrophotometry, determination of iron content

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