File Download

There are no files associated with this item.

  Links for fulltext
     (May Require Subscription)
Supplementary

Article: An improved Carius tube technique for determination of low concentrations of Re and Os in pyrites

TitleAn improved Carius tube technique for determination of low concentrations of Re and Os in pyrites
Authors
Issue Date2010
PublisherRoyal Society of Chemistry. The Journal's web site is located at http://www.rsc.org/jaas
Citation
Journal Of Analytical Atomic Spectrometry, 2010, v. 25 n. 4, p. 585-589 How to Cite?
AbstractA simple and highly selective analytical method is developed for Re-Os dating in hydrothermal pyrites. Pyrites were first digested with HNO 3 in a 120 ml Carius tube. The released additional gas and a small portion of volatile Os (∼6% of total Os) were collected by 10 mol l -1 of HCl in an ice-water bath. After the sulfides were totally reacted with HNO 3, the HCl solution containing all the released Os was transferred back to the Carius tube. The sample was further digested in aqua regia at 200 °C for about 10 h in a sealed Carius tube. Because prior digestion in an open Carius tube removed the additional gas, this improved technique allows increasing the sample mass to about 3 g, which is vital for Re-Os dating in Re and Os poor hydrothermal pyrites. Os was separated from the matrix by distillation and Re by anion exchange resin. The results obtained for molybdenite reference materials, JDC and HLP mixed with 3 g pyrite are in good agreement with certified values. Despite very low concentrations of Re and Os, the pyrite yields excellent repeatability and can be used for Re and Os poor hydrothermal pyrites. © 2010 The Royal Society of Chemistry.
Persistent Identifierhttp://hdl.handle.net/10722/129178
ISSN
2014 Impact Factor: 3.466
2013 SCImago Journal Rankings: 1.111
ISI Accession Number ID
Funding AgencyGrant Number
Chinese Academy of SciencesKZCX2-YW-BR-09
Chinese 973 project2007CB411401
National Natural Science Foundation of China (NSFC)40773070
Research Grant Council of Hong KongHKU7057/05P
Funding Information:

This study was supported by the "CAS Hundred Talents" Project from the Chinese Academy of Sciences to Qi Liang (KZCX2-YW-BR-09), the Chinese 973 project (2007CB411401), the National Natural Science Foundation of China (NSFC 40773070) and the Research Grant Council of Hong Kong (HKU7057/05P). We thank Prof. P.J. Sylvester for critical reading of the draft of this paper. We thank Dr D. C. Gregoire from the Geological Survey of Canada for providing us with the spike solutions of 185 Re, 190 Os.

References

 

DC FieldValueLanguage
dc.contributor.authorQi, Len_HK
dc.contributor.authorZhou, MFen_HK
dc.contributor.authorGao, Jen_HK
dc.contributor.authorZhao, Zen_HK
dc.date.accessioned2010-12-23T08:33:16Z-
dc.date.available2010-12-23T08:33:16Z-
dc.date.issued2010en_HK
dc.identifier.citationJournal Of Analytical Atomic Spectrometry, 2010, v. 25 n. 4, p. 585-589en_HK
dc.identifier.issn0267-9477en_HK
dc.identifier.urihttp://hdl.handle.net/10722/129178-
dc.description.abstractA simple and highly selective analytical method is developed for Re-Os dating in hydrothermal pyrites. Pyrites were first digested with HNO 3 in a 120 ml Carius tube. The released additional gas and a small portion of volatile Os (∼6% of total Os) were collected by 10 mol l -1 of HCl in an ice-water bath. After the sulfides were totally reacted with HNO 3, the HCl solution containing all the released Os was transferred back to the Carius tube. The sample was further digested in aqua regia at 200 °C for about 10 h in a sealed Carius tube. Because prior digestion in an open Carius tube removed the additional gas, this improved technique allows increasing the sample mass to about 3 g, which is vital for Re-Os dating in Re and Os poor hydrothermal pyrites. Os was separated from the matrix by distillation and Re by anion exchange resin. The results obtained for molybdenite reference materials, JDC and HLP mixed with 3 g pyrite are in good agreement with certified values. Despite very low concentrations of Re and Os, the pyrite yields excellent repeatability and can be used for Re and Os poor hydrothermal pyrites. © 2010 The Royal Society of Chemistry.en_HK
dc.languageengen_US
dc.publisherRoyal Society of Chemistry. The Journal's web site is located at http://www.rsc.org/jaasen_HK
dc.relation.ispartofJournal of Analytical Atomic Spectrometryen_HK
dc.titleAn improved Carius tube technique for determination of low concentrations of Re and Os in pyritesen_HK
dc.typeArticleen_HK
dc.identifier.emailZhou, MF:mfzhou@hkucc.hku.hken_HK
dc.identifier.authorityZhou, MF=rp00844en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1039/b919016cen_HK
dc.identifier.scopuseid_2-s2.0-77950278351en_HK
dc.identifier.hkuros177757en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-77950278351&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume25en_HK
dc.identifier.issue4en_HK
dc.identifier.spage585en_HK
dc.identifier.epage589en_HK
dc.identifier.isiWOS:000275926900015-
dc.publisher.placeUnited Kingdomen_HK
dc.identifier.scopusauthoridQi, L=7202149924en_HK
dc.identifier.scopusauthoridZhou, MF=7403506005en_HK
dc.identifier.scopusauthoridGao, J=25638167000en_HK
dc.identifier.scopusauthoridZhao, Z=18234308300en_HK

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats