摘要
采用磷酸三丁酯萃取分离碱式硫酸铬中CrO2-4与Cr3+,CrO2-4被有机溶剂萃取后直接显色,通过分光光度法进行定量分析。方法加标回收率为97 6%～99 1%,变异系数1 9%。
The determination of chromium(6+), which was extracted from basic chromium sulfate with tributyl phasphate (TBP), was studied. The recovery is 97.6%～99.1%, and the RSD is 1.9%.
出处
《精细化工中间体》
CAS
2004年第1期63-64,共2页
Fine Chemical Intermediates
