{"refrec":{"BRefID":334910,"RR":"<b>Casacuberta, N.; Castrillejo, M.; Wefing, A.-M.; Bollhalder, S.; Wacker, L.</b> (2019). High precision 14C analysis in small seawater samples. <i>Radiocarbon 62(1)</i>: 13-24. <a href=\"https://dx.doi.org/10.1017/rdc.2019.87\" target=\"_blank\">https://dx.doi.org/10.1017/rdc.2019.87</a>","BEntID":331467,"PublicFlag":1,"CheckedFlag":0,"wosflag":1,"vabbflag":1,"RefStringPartII":". <i>Radiocarbon 62(1)</i>: 13-24. <a href=\"https://dx.doi.org/10.1017/rdc.2019.87\" target=\"_blank\">https://dx.doi.org/10.1017/rdc.2019.87</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":0,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Casacuberta, N.; Castrillejo, M.; Wefing, A.-M.; Bollhalder, S.; Wacker, L.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Casacuberta, N. <i>et al.</i>","Englishabstract":"A new method to extract CO<span class=\"sub\">2</span> in seawater samples for the determination of F<span class=\"sup\">14</span>C has been developed in the Laboratory of Ion Beam Physics at ETH Zurich. The setup consists of an automated sampler designed to extract dissolved inorganic carbon (DIC) from 7 samples in a row, by flushing the seawater with He gas to extract CO<span class=\"sub\">2</span>. The fully automated method is controlled via a LabVIEW program that runs through all consecutive steps: catalyst preconditioning, CO<span class=\"sub\">2</span> extraction, CO<span class=\"sub\">2</span> trapping, thermal CO<span class=\"sub\">2</span> release from the trap into the reactor and finally the graphitization reaction which is performed simultaneously in the 7 reactors. The method was optimized by introducing a Cu-Ag furnace that was placed between the water and zeolite traps, which resulted in a better and faster graphitization performance (&lt;2 hr) compared to previously used techniques. The method showed to be reproducible with an unprecedented precision of 1.7‰ even though consuming only 50–60 mL of seawater. The high throughput of 21 samples per day allows for coverage of future oceanographic transects with high spatial resolution, thus fostering the use of radiocarbon (<span class=\"sup\">14</span>C) as water mass tracer.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"High precision 14C analysis in small seawater samples","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2024-12-10 01:33:17.368041","timezone_type":1,"timezone":"+01:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":"AGE system, Cu-Ag furnace, radiocarbon, seawater, tracer","OtherDescriptors":null,"Notes":null,"AnaPub":2019,"MonPub":null,"DateUpdate":"2021-03-16","DateCreate":"2021-03-16","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000510445400002","VABBcode":null,"OpenAcc":0,"DOI":"10.1017/rdc.2019.87"},"refs":null,"anarec":{"AnaID":334910,"PubliDate":2019,"Pagination":"13-24","XtraPublOfAnaID":null,"ISBN":null,"Volume":"62","Issue":"1","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":110536,"SerRR":"Radiocarbon. 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