摘要
采用氧化-还原返滴定法与可见分光光度法相结合的方法研究了掺铬锰酸锂材料LiCr0.08Mn1.92O4中锰的平均化合价,探讨了测定锰的工作曲线与测定总锰的合适条件。经过测试表明LiCr0.08Mn1.92O4中锰的平均化合价为3.5213,锰的质量分数为60.0137%,其相对误差分别为0.014%、2.74%。
The Mn average valence in the Cr - doped lithium manganese oxide LiCr0.08Mn1.92O4 was determined by redox back titration and visible specrtrophotometry. The analytical conditions for the total Mn and the working curves for the Mn concentration determination were also studied. The Mn average valence and the Mn weight percent in LiCr0.08Mn1.92O4 was 3. 5213 and 60.013 7% respectively, their relative error was 0.014% and 2.74% respectively.
出处
《化学分析计量》
CAS
2007年第3期31-33,共3页
Chemical Analysis And Meterage
基金
福建省青年科技人才创新项目(2004J004)
