摘要
本文提出在１０％盐酸介质，用紫外－可见分光光度法测定氯化稀土、轻稀土氧化物中的镨、钕、钐，测定波长分别为４４４ｎｍ、５７５ｎｍ、４０１ｎｍ，钐对镨的干扰和镨对钕的干扰均可用校正系数加以消除。方法回收率为９７．５％～１０２．９％，检出下限分别为５０×１０￣（－６）ｇ／ｍＬ，１０×１０￣（－６）ｇ／ｍＬ，１００×１０￣（－６）ｇ／ｍＬ。
A spectrophotometric method has been developed for the determination of praseodymium,neodymium and samarium in rare earth chlorides and light rare earth oxides. The measurements were carried out in 10% HCl medium using a UV-spectrophotometer at 444 nm ,575 nm and 401 nm, respectively. The interferences of samarium with praseodymium and praseodymium with neodymium can be eliminated by using correction coefficients. The recovery range of the method is 97. 5%～102.9%,while the detection limits are 50 ,10 and 100×10-6 ,respectively.It is simple,rapid and specific.
出处
《分析测试学报》
CAS
CSCD
1996年第4期50-55,共6页
Journal of Instrumental Analysis
关键词
稀土
镨
钕
钐
分光光度法
氧化物
Rare earth
Praseodymium
Neodymium
Samarium
Spectrophotometry.
