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dc.contributor.authorRuff, M.
dc.contributor.authorFahrni, S.
dc.contributor.authorGaggeler, H. W.
dc.contributor.authorHajdas, I.
dc.contributor.authorSuter, M.
dc.contributor.authorSynal, H-A
dc.contributor.authorSzidat, S.
dc.contributor.authorWacker, L.
dc.date.accessioned2021-02-11T20:59:30Z
dc.date.available2021-02-11T20:59:30Z
dc.date.issued2010-01-01
dc.identifier.citationRuff, M., Fahrni, S., Gäggeler, H. W., Hajdas, I., Suter, M., Synal, H.-A., ... & Wacker, L. (2010). On-line radiocarbon measurements of small samples using elemental analyzer and MICADAS gas ion source. Radiocarbon, 52(4), 1645-1656.
dc.identifier.issn0033-8222
dc.identifier.doi10.1017/S003382220005637X
dc.identifier.urihttp://hdl.handle.net/10150/653952
dc.description.abstractAn on-line measurement system was installed at the MICADAS in Zurich, using an elemental analyzer (EA) as a combustion unit to enable direct radiocarbon measurement of samples containing carbon in the range of 5-100 g possible with minimum effort. The samples are combusted in small capsules and the gaseous combustion products are separated by the EA. The carbon dioxide leaving the EA in a high helium flow is concentrated on a small external trap containing X13 zeolite adsorber material. This new concept, avoiding a cryogenic trapping for the enrichment step, allows the construction of a very compact system able to work even with the smallest samples. Concentrated on the external trap, the carbon dioxide is flushed into the gas-tight syringe of our gas inlet system using a low helium stream. The gas mixture is measured with the MICADAS gas ion source. Several different sample capsules were analyzed to minimize the major blank contribution coming from the sample vessel. The best results were achieved with 25-L tin capsules, which contained only 0.34 0.13 g carbon at 65 pMC. This work describes the development of the on-line system and the protocol for measurement runs. Results are presented for on-line measurements of reference materials and a comparison is performed with typical dating samples measured previously as graphite targets. Finally, relevance and limitations of on-line measurements are discussed.
dc.language.isoen
dc.publisherDepartment of Geosciences, The University of Arizona
dc.relation.urlhttp://radiocarbon.webhost.uits.arizona.edu/
dc.rightsCopyright © by the Arizona Board of Regents on behalf of the University of Arizona. All rights reserved.
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/
dc.titleOn-Line Radiocarbon Measurements of Small Samples Using Elemental Analyzer and MICADAS Gas Ion Source
dc.typeArticle
dc.typetext
dc.identifier.journalRadiocarbon
dc.description.collectioninformationThe Radiocarbon archives are made available by Radiocarbon and the University of Arizona Libraries. Contact lbry-journals@email.arizona.edu for further information.
dc.eprint.versionFinal published version
dc.description.admin-noteMigrated from OJS platform February 2021
dc.source.volume52
dc.source.issue4
dc.source.beginpage1645
dc.source.endpage1656
refterms.dateFOA2021-02-11T20:59:30Z


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