【摘要】 用铜试剂沉淀分离干扰元素,在pH≈3的弱酸性环境,加偶氮胂Ⅲ与稀土铈络合生成蓝紫色络合物,于波长650nm处直接对钢中的稀土铈进行光度法测定。结果表明,偶氮胂Ⅲ对稀土铈具有稳定的分析性能。该法简单、实用,快速、准确。更多还原

【Abstract】 The rare earth cerium content in steel is determined by spectrophotometric method with a 650nm wave,using copper reagent in solution to isolate interrelated elements,then,at pH≈3,and adding arsenazoⅢto develop blue complex compound with cerium.It is show that arsenazoⅢhas a stable reaction for admeasurement of rare earth cerium content in steel.It is a simple,practical,and effective method.更多还原