The contents of Ni,Fe and Mn in NFM(111)were quantitatively analyzed by instrumental analysis and chemical analysis.Firstly,the total amount of nickel,iron and manganese in NFM(111)were determined by EDTA reverse titration,and the molar ratio of each element was determined by inductively coupled plasma emission spectrometry(ICP-OES),and then the accurate content of each element in NFM(111)was calculated.The results of the precision and spiked recovery experiments showed that the method has high accuracy,and its spiked recoveries were from 100.11％to 101.19％with the relative standard deviations(RSDs)less than 0.60％.After scientific experimental evaluation,the method is accurate and rapid,and can be applied in practical testing work.
关键词
钠电三元前驱体/NFM(111)/元素摩尔比/ICP-OES/EDTA返滴定法
Key words
terniary precursor for sodium electrolysis/NFM(111)/element molar ratio/ICP-OES/EDTA reverse titration
维普
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