铜合金中稀土总量的快速测定,目前还很少有资料介绍.为了解决这一快速测定方法,我们在球墨铸铁中稀土总量快速测定的基础上,进行了试验.考虑到,测定时主要是铜、铅、锡等干扰离子的分离问题,所以在铁路常用铜合金中,作了稀土和干扰离子的分离试验,最后发现用铜试剂-氯仿萃取分离后,再用偶氮肺Ⅲ显色,结果令人满意. The rapid determination of the total amount of rare earths in copper alloy, there is still little information to introduce.To solve this rapid determination method, we in the ductile iron rapid determination of total amount of rare earth based on the test.Considering the determination of the main Is copper, lead, tin and other interfering ions separation problem, so commonly used in the railway copper alloy, rare earth ions and interference experiments were made, and finally found with copper reagent - chloroform extraction and separation, and then azo lung Ⅲ color , The result is satisfactory.