COMPARATIVE METHODS FOR DETERMINATION OF RARE-EARTHS IN GEOLOGICAL AND MINERAL SAMPLES

Authors
NEKAB M HEITZ C LAGARDE G AMOKRANE A
Citation
M. Nekab et al., COMPARATIVE METHODS FOR DETERMINATION OF RARE-EARTHS IN GEOLOGICAL AND MINERAL SAMPLES, Journal of radioanalytical and nuclear chemistry, 182(2), 1994, pp. 247-256
Citations number
12
Journal title
Journal of radioanalytical and nuclear chemistry → ACNP
ISSN journal
02365731
Volume
182
Issue
2
Year of publication
1994
Pages
247 - 256
Database
ISI
SICI code
0236-5731(1994)182:2<247:CMFDOR>2.0.ZU;2-L
Abstract
Particle induced X-ray emission (PIXE) has been used for the quantitat ive analysis of rare earth elements (REE) in thick targets prepared fr om geological and mineral samples. Measurements were made with 1 and 3 MeV proton beams. For comparison, determination of the same elements was made by X-ray fluorescence (XRF) using a Am-241 annular source. Mi nimal detectable limits (MDL) have been estimated for the two situatio ns. Neutron activation analysis (NAA) has also been used for the deter mination of REE at the ppm level.