An extractive pellet fluorimetric determination of trace uranium in thorium rich samples |
| |
Authors: | Pranab Kumar Tarafder Susanta Kumar Pradhan Shaswati Roychowdhury |
| |
Institution: | 1.Chemical Laboratory, Department of Atomic Energy,Atomic Minerals Directorate for Exploration and Research,Jamshedpur,India |
| |
Abstract: | An extractive pellet fluorimetry determination of trace uranium in thorium rich samples has been developed. This is based upon a solvent extraction system which completely separates both the elements uranium and thorium from each other. Thorium as a neutral complex with 2,3-dihydroxynaphthalene at pH 4–6 is extracted into ethylacetate and then uranium-2,3-dihydroxynaphthalene anionic complex is extracted into another batch of ethylacetate at pH 11–12 under the influence of a counter cation, cetyltrimethylammonium ion. This method has been applied for the determination of trace uranium in synthetic nuclear grade thorium oxide and thorium rich mineralized rock with high degree of accuracy and precision. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|