Determination and distribution of gold in Greek bauxites of the Parnassos-Ghiona area by gamma-spectroscopy after ion exchange separation

Ochsenkuhn, KM; Fafouteli, P; Ochsenkuhn-Petropoulou, M

dc.contributor.author	Ochsenkuhn, KM	en
dc.contributor.author	Fafouteli, P	en
dc.contributor.author	Ochsenkuhn-Petropoulou, M	en
dc.date.accessioned	2014-03-01T01:17:41Z
dc.date.available	2014-03-01T01:17:41Z
dc.date.issued	2002	en
dc.identifier.issn	0236-5731	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/14628
dc.subject	Ion Exchange	en
dc.subject	Trace Element	en
dc.subject	High Concentrate	en
dc.subject	Instrumental Neutron Activation Analysis	en
dc.subject.classification	Chemistry, Analytical	en
dc.subject.classification	Chemistry, Inorganic & Nuclear	en
dc.subject.classification	Nuclear Science & Technology	en
dc.subject.other	anion exchange resin	en
dc.subject.other	chelating agent	en
dc.subject.other	gold	en
dc.subject.other	trace element	en
dc.subject.other	adsorption	en
dc.subject.other	article	en
dc.subject.other	gamma spectrometry	en
dc.subject.other	Greece	en
dc.subject.other	ion exchange	en
dc.subject.other	neutron activation analysis	en
dc.subject.other	separation technique	en
dc.title	Determination and distribution of gold in Greek bauxites of the Parnassos-Ghiona area by gamma-spectroscopy after ion exchange separation	en
heal.type	journalArticle	en
heal.identifier.primary	10.1023/A:1019601926242	en
heal.identifier.secondary	http://dx.doi.org/10.1023/A:1019601926242	en
heal.language	English	en
heal.publicationDate	2002	en
heal.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 degreesC, 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 (1)98Au 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.	en
heal.publisher	KLUWER ACADEMIC PUBL	en
heal.journalName	Journal of Radioanalytical and Nuclear Chemistry	en
dc.identifier.doi	10.1023/A:1019601926242	en
dc.identifier.isi	ISI:000177295600014	en
dc.identifier.volume	253	en
dc.identifier.issue	2	en
dc.identifier.spage	257	en
dc.identifier.epage	262	en