ICP法测定锰酸锂中铁含量方法改进  

Improvement of determination of iron content in LiMn_2O_4 by ICP method

作　　者：于晓微[1] 付春明[1] 张晓波[1] 张春丽[1] 

机构地区：[1]中海油天津化工研究设计院,天津300131

出　　处：《无机盐工业》2014年第4期67-68,75,共3页Inorganic Chemicals Industry

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。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.

关 键 词：锰酸锂 ICP法 分光光度法 铁含量测定 

分 类 号：TQ138.11[化学工程—无机化工]