摘要
为解决以重稀土为主的稀土矿中少量镧铈合量的测定问题,本文提出了以Zn-EDTA和EDTA联合掩蔽La、Ce以外的大量轻、重稀土并以对乙酰基偶氮胂为显色剂测定了龙南混合稀土氧化物中少量La和Ce合量,结果令人满意。
A spectrophotometric method has been developed for the determination of lanthanum and cerium in the presence of large amqunts of heavy rare earths with p-acetylarsenazo. The rare earths, except lanthanum and eerium, are masked with EDTA and Zn-EDTA. This method has been applied to the analysis of synthetic samples and Longnan mixed rare earth oxides without any previous separation and satisfactory results were obtained.
出处
《岩矿测试》
CAS
CSCD
北大核心
1990年第1期39-42,共4页
Rock and Mineral Analysis