{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,7]],"date-time":"2026-10-07T04:01:54Z","timestamp":1791345714381,"version":"4.3.1"},"reference-count":29,"publisher":"Wiley","issue":"3","license":[{"start":{"date-parts":[[2024,12,8]],"date-time":"2024-12-08T00:00:00Z","timestamp":1733616000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100000038","name":"Natural Sciences and Engineering Research Council of Canada","doi-asserted-by":"publisher","award":["2015\u201004413"],"award-info":[{"award-number":["2015\u201004413"]}],"id":[{"id":"10.13039\/501100000038","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100000038","name":"Natural Sciences and Engineering Research Council of Canada","doi-asserted-by":"publisher","award":["2020\u201005810"],"award-info":[{"award-number":["2020\u201005810"]}],"id":[{"id":"10.13039\/501100000038","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100015668","name":"Ontario Ministry of Research and Innovation","doi-asserted-by":"publisher","award":["MRI\u2010ORF #28001"],"award-info":[{"award-number":["MRI\u2010ORF #28001"]}],"id":[{"id":"10.13039\/501100015668","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100000196","name":"Canada Foundation for Innovation","doi-asserted-by":"publisher","award":["CFI\u2010LOF#28001"],"award-info":[{"award-number":["CFI\u2010LOF#28001"]}],"id":[{"id":"10.13039\/501100000196","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100010785","name":"Canada First Research Excellence Fund","doi-asserted-by":"publisher","award":["Global Water Futures\/Southern Forests Water Future"],"award-info":[{"award-number":["Global Water Futures\/Southern Forests Water Future"]}],"id":[{"id":"10.13039\/501100010785","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["analyticalsciencejournals.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Rapid Comm Mass Spectrometry"],"published-print":{"date-parts":[[2025,2,15]]},"abstract":"\n Rationale<\/jats:title>\n \n The stable isotope compositions of atmospheric CO\n 2<\/jats:sub>\n can provide useful insight into various geochemical processes and carbon cycles on Earth, which is critical for understanding of Earth's changing climate. Here, we present a simple and cost\u2010effective analytical method for the collection and measurement of carbon and oxygen isotope compositions of atmospheric CO\n 2<\/jats:sub>\n .\n <\/jats:p>\n <\/jats:sec>\n \n Methods<\/jats:title>\n \n Air samples of ~150\u2009mL were collected individually or collectively using our simple active air collection system and then extracted on a vacuum purification line to remove noncondensable gases and atmospheric water vapor. The efficiency of removing atmospheric water vapor was tested by using a magnesium perchlorate desiccant trap and a dry ice\/ethanol trap. Lastly, a \u201cJ\u2010Cut tube sealing\/cracking method\u201d was developed to store and transfer purified atmospheric CO\n 2<\/jats:sub>\n to the GasBench II and CF\u2010IRMS system for \u03b4\n 13<\/jats:sup>\n C and \u03b4\n 18<\/jats:sup>\n O measurements.\n <\/jats:p>\n <\/jats:sec>\n \n Results<\/jats:title>\n \n The collective active air collection method combined with the full sample air extraction method for a 3\u2010min transfer time or \u201cFull 3m TE\u201d yields the best analytical precision of 0.07\u2030 (\u03b4\n 13<\/jats:sup>\n C) and 0.04\u2030 (\u03b4\n 18<\/jats:sup>\n O). Removing atmospheric water vapor from air samples is not necessary for \u03b4\n 13<\/jats:sup>\n C, but essential for \u03b4\n 18<\/jats:sup>\n O measurements. The J\u2010Cut tube sealing\/cracking method shows a near 100% effectiveness for the storage and transfer of atmospheric or any CO\n 2<\/jats:sub>\n .\n <\/jats:p>\n <\/jats:sec>\n \n Conclusions<\/jats:title>\n \n A simple and cost\u2010effect method was developed for the collection, purification, storage, and isotopic analysis of indoor\/outdoor atmospheric CO\n 2<\/jats:sub>\n samples for general users. This method utilizes a popular headspace gas sample preparation system for CF\u2010IRMS and an easy\u2010to\u2010build vacuum purification line without involving complex and high\u2010cost devices for the preparation of atmospheric CO\n 2<\/jats:sub>\n .\n <\/jats:p>\n <\/jats:sec>","DOI":"10.1002\/rcm.9941","type":"journal-article","created":{"date-parts":[[2024,12,8]],"date-time":"2024-12-08T22:29:56Z","timestamp":1733696996000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["A simple and cost\u2010effective sample preparation and storage method for stable isotope analysis of atmospheric CO\n 2<\/sub>\n for GasBench II\/continuous flow isotope ratio mass spectrometry"],"prefix":"10.1002","volume":"39","author":[{"given":"Savio","family":"Manaj","sequence":"first","affiliation":[{"name":"School of Earth, Environment & Society McMaster University Hamilton ON 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