摘要
本文采用ＤＨＤＥＣＭＰ萃取树脂为固定相、３ｍｏｌ／ＬＨＮＯ３为流动相的萃取色谱法使杂质元素与铀基体分离，杂质流出液引入ＩＣＰ测定。取样２００ｍｇ时，Ｔｉ、Ｖ和Ｍｏ的测定下限分别为：０．０８×１０－６、０．３４×１０－６、０．６×１０－６。当各元素的加入量为５．０×１０－６时，方法加入回收率在９４％－９９％之间，相对标准偏差≤１４％。
method for determination of Ti, V and Mo in nuclear purity UO2 by ICP-AES is described in this paper. The sample charged into the DHDECMP extraction resin chromatographic column was separated at a flow rate of 0.5mL/min with 3mol/L HNO3 as a medium. The uranium was absorbed on the chromatographic column while the three impurity elements remained in the effuent solution. Using the Jarred-Ash Model 975 ICP direct reading spetrometer the Ti, V and Mo in the effluent solution was determined with the determination limits of 0.08×10-6 to 0.6×10-6. The RSD was better than 14% and the recovery of 94% to 99% was attained.
出处
《铀矿冶》
CAS
1994年第1期40-43,共4页
Uranium Mining and Metallurgy
