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Quantification of dissolved organic 14C-containing compounds by accelerator mass spectrometry in a corrosion experiment with irradiated steel

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cris.virtual.author-orcid0000-0002-1824-6207
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dc.contributor.authorCvetković, Benjamin Z
dc.contributor.authorSalazar Quintero, Gary Abdiel
dc.contributor.authorKunz, Dominik
dc.contributor.authorTits, Jan
dc.contributor.authorSzidat, Sönke
dc.contributor.authorWieland, Erich
dc.date.accessioned2024-10-08T15:13:47Z
dc.date.available2024-10-08T15:13:47Z
dc.date.issued2018-12
dc.description.abstractLow- and intermediate-level (L/ILW) radioactive waste produced in Switzerland consists of large amounts of 14C-containing irradiated steel. 14C will be released during the anoxic corrosion of the steel in the cementitious near field of an L/ILW repository. In this study, a corrosion experiment with irradiated steel was carried out to determine the speciation of 14C released during the corrosion process in conditions similar to those anticipated in the near field of a cement-based repository. The development of the experimental setup, including installation of the reactor and development of suitable analytical methods based on compound-specific 14C analysis with accelerator mass spectrometry (CSRA AMS) is reported. Time-dependent increase in the total content of 14C-bearing organic compounds in solution (TO14C) was determined by AMS and the main organic corrosion products that are 14C-bearing formate, acetate and lactate were identified by CSRA AMS after a pre-concentration step. The concentration of the 14C-bearing organic compounds was found to be very low (fmol to pmol 14C/L). Stable carbon compounds were identified and quantified while the source of stable carbon in the system has not yet been identified and the temporal evolution of the concentration of these carbon species is presently not understood.
dc.description.numberOfPages17
dc.description.sponsorshipDepartement für Chemie und Biochemie (DCB)
dc.identifier.doi10.7892/boris.125499
dc.identifier.publisherDOI10.1017/RDC.2018.90
dc.identifier.urihttps://boris-portal.unibe.ch/handle/20.500.12422/63516
dc.language.isoen
dc.publisherArizona Board of Regents, University of Arizona
dc.relation.ispartofRadiocarbon
dc.relation.issn0033-8222
dc.relation.organizationDCD5A442C08FE17DE0405C82790C4DE2
dc.relation.organizationDCD5A442C14DE17DE0405C82790C4DE2
dc.subject.ddc500 - Science::540 - Chemistry
dc.titleQuantification of dissolved organic 14C-containing compounds by accelerator mass spectrometry in a corrosion experiment with irradiated steel
dc.typearticle
dspace.entity.typePublication
dspace.file.typetext
oaire.citation.endPage1727
oaire.citation.issue6
oaire.citation.startPage1711
oaire.citation.volume60
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oairecerif.author.affiliationDepartement für Chemie und Biochemie (DCB)
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oairecerif.author.affiliationDepartement für Chemie und Biochemie (DCB)
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unibe.date.licenseChanged2019-10-23 15:16:18
unibe.description.ispublishedpub
unibe.eprints.legacyId125499
unibe.journal.abbrevTitleRADIOCARBON
unibe.refereedTRUE
unibe.subtype.articlejournal

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