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IJC-A Vol.49A(08) [August 2010] >

Title: EDXRF determination of Dy, Eu, Gd and Sm in aqueous solutions
Authors: Porwal, N K
Natarajan, V
Kumar, Mithlesh
Rajeswari, B
Kulkarni, M J
Bhide, M K
Dhawale, B A
Godbole, S V
Keywords: Analytical chemistry
EDXRF spectroscopy
Rare earths
Issue Date: Aug-2010
Publisher: CSIR
IPC CodeInt. Cl.9 CO7F5/00; G01N21/00
Abstract: An EDXRF technique for the determination of four important rare earth impurities, viz., Eu, Dy, Sm and Gd, at 20-1000 g/ml in aqueous medium as well as in the presence of uranium has been reported. The conditions have been optimized for the simultaneous determination of these elements. The limits of detection for the analytes in aqueous solutions are determined to be 20 g/ml. In order to achieve lower limits of detection, a novel method based on polyvinyl alcohol films containing these rare earths has been established. Four uranium oxide samples have been analysed by EDXRF as well as inductively coupled plasma‚Äďatomic emission spectrometry after chemical separation of uranium. The results are in good agreement.
Page(s): 1052-1055
Source:IJC-A Vol.49A(08) [August 2010]

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