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Article
Recovery of americium from analytical solid waste containing large amounts of uranium, plutonium and silver
Trace metallic impurity analysis by spectroscopic techniques is one of the important steps of chemical quality control of nuclear fuel materials. Depending on the burn-up and the storage time of the fuel, ther...
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Article
Application of energy dispersive X-ray fluorescence for the determination of metallic impurities in ThO2
Energy dispersive X-ray fluorescence (EDXRF) spectrometric methods have been developed for the determination of some common metallic impurities in ThO2 matrix. A series of ThO2 standards containing the analyte im...
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Article
Role of Cyanex-272 as an extractant for uranium in the determination of rare earths by ICP-AES
A chemical separation procedure has been developed for the extraction of uranium from some of the crucially important rare earths using a novel extractant viz. Cyanex-272 (2,4,4-trimethyl pentyl phosphinic aci...
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Article
ICP-AES and D.C.arc-AES determination of Sc, Y and lanthanides in nuclear grade graphite
Inductively Coupled Plasma-Atomic Emission Spectrometric and Direct Current Arc-Emission Spectrometric methods have been developed for the determination of rare earths in nuclear grade graphite. The graphite m...
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Article
Chemical separation and electrothermal atomic-absorption spectrophotometric determination of Cd, Co, Cu and Ni in high-purity uranium
Die Spuren werden aus einer 100 mg Uranprobe in 3 M salpetersaurer Lösung durch Extraktion des U mit Hilfe von 0.2 M Di-n-octylsulfoxid im Xylol abgetrennt und werden anschließend in der wäßrigen Phase durch G...
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Article
Estimation of trace metals in pure graphite by emission spectroscopy
Eine Methode zur direkten Bestimmung von Al, B, Ca, Cd, Co, Cr, Fe, Mg, Mn, Mo, Ni, Pb, Si, Sn, V und Zn im ppm-Bereich in Graphit wurde ausgearbeitet. Verschiedene Trägermaterialien wurden geprüft und 1% NaF ...