DETERMINATION OF SELENIUM IN NICKEL AND COBALT CONCENTRATES APPLYING EPITHERMAL NEUTRON-ACTIVATION ANALYSIS

Authors
RODRIGUEZ C RIVERO AH BERMUDEZ JM GUEVARA SR ARRIBERE MA INSFRAN JM ZAYAS GP
Citation
C. Rodriguez et al., DETERMINATION OF SELENIUM IN NICKEL AND COBALT CONCENTRATES APPLYING EPITHERMAL NEUTRON-ACTIVATION ANALYSIS, Journal of radioanalytical and nuclear chemistry, 223(1-2), 1997, pp. 217-220
Citations number
13
Categorie Soggetti
Chemistry Inorganic & Nuclear","Chemistry Analytical","Nuclear Sciences & Tecnology
Journal title
Journal of radioanalytical and nuclear chemistry → ACNP
ISSN journal
02365731
Volume
223
Issue
1-2
Year of publication
1997
Pages
217 - 220
Database
ISI
SICI code
0236-5731(1997)223:1-2<217:DOSINA>2.0.ZU;2-P
Abstract
Se in Ni and Co concentration in concentrates obtained from the nickel industry has to be determined for quality control requirements in the ir commercialization. Analysis of Se at minor and trace levels is rela tively complicated and destructive procedures are frequently required. In this work the determination of Se by epithermal neutron activation analysis (ENAA) in 17 samples from Cuban nickel industry was investig ated Application of ENAA allowed nondestructive determination of Se co ncentration down to ppm level in spite of the presence of high Co, Fe, Ni and Cr contents in the samples. For attenuation of the thermal neu tron flux a Cd filter was utilized.