Journal of Radioanalytical and Nuclear Chemistry
Volume/Issue:
Volume 253: Issue 2
Determination and distribution of gold in Greek bauxites of the Parnassos-Ghiona area by gamma-spectroscopy after ion exchange separation
Authors:
K. Ochsenkühn NCSR “Demokritos” Laboratory for Trace Element Studies, Institute of Physical Chemistry Aghia Paraskevi Attikis 15310 Athens Greece

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P. Fafouteli National Technical University of Athens Laboratory of Analytical and Inorganic Chemistry, Department of Chemical Engineering 15773 Athens Greece

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M. Ochsenkühn-Petropoulou National Technical University of Athens Laboratory of Analytical and Inorganic Chemistry, Department of Chemical Engineering 15773 Athens Greece

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Pages:
257–262
Online Publication Date:
01 Nov 2004
Publication Date:
17 Aug 2002
Article Category:
Research Article
DOI:
https://doi.org/10.1023/a:1019601926242
Restricted access

Abstract  

For the determination of gold in Greek bauxites from the Parnassos-Ghiona area, an analytical technique was used based on the selective adsorption of gold on SRAFION NMRR chelating anion exchanger resin, after leaching the bauxites with aqua regia in a teflon-autoclave at 120 °C, and the determination of the retained gold directly on the resin by instrumental neutron activation analysis (INAA), using the 411.8 keV line of the 198Au isotope. The procedure allowed to determine Au in concentrations down to ng/g. The obtained data were used to examine the distribution of Au in the profiles of a group of different bauxites from the upper or the called third bauxitic horizon of the Parnassos-Ghiona area in Greece. Especially in the basement of some bauxite deposits unexpected high concentrations of Au up to 2 mg/g have been found. Furthermore, the correlation of Au with other trace elements, found in the bauxitic samples, was investigated.

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Cover Journal of Radioanalytical and Nuclear Chemistry
Journal of Radioanalytical and Nuclear Chemistry
Print ISSN:
0236-5731
Online ISSN:
1588-2780

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Journal of Radionalytical and Nuclear Chemistry
Language English
Size A4
Year of
Foundation		 1968
Volumes
per Year		 1
Issues
per Year		 12
Founder Akadémiai Kiadó
Founder's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher		 Chief Executive Officer, Akadémiai Kiadó
ISSN 0236-5731 (Print)
ISSN 1588-2780 (Online)

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