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Direct determination of δ44/42Ca isotope ratio by ion chromatography/low-resolution multicollector ICPMS

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dc.abstract.enHigh‐precision on‐line procedure for measurement of calcium isotopic ratio by coupling ion chromatography to multicollector inductively coupled plasma mass spectrometry was developed. Calcium separation from the sample matrix was achieved on an ion chromatography column—IonPac CS16—ID 3 mm connected with CERS 500 2 mm suppressor and followed by multicollector inductively coupled plasma mass spectrometry calcium isotopic ratio determination. Dry plasma mode was used with Aridus II desolvation system. To sustained samples with high level of total dissolved salts as well as account capacity of applied analytical column, the method has been optimized regarding calcium isotope ratio measurements with low‐resolution mass spectrometry. Mass discrimination and instrument drift were corrected by sample‐standard bracketing method using the 44Ca/42Ca isotope ratio of SRM 915a as a standard. Good accuracy and reasonable precision of calcium isotope ratio (generally 0.20‰ [2SD]) were achieved, which are comparable to off‐line Ca separation and continuous measurement. The reproducibility of the proposed analytical procedure was verified by measuring the SRM 915a standard as a sample randomly over 3 months (n = 56). Applicability of the protocol was demonstrated for matrix‐rich natural water samples, coral samples, and bone standard reference materials.
dc.affiliationUniwersytet Warszawski
dc.contributor.authorHalicz, Ludwik
dc.contributor.authorWojciechowski, Marcin
dc.contributor.authorBulska, Ewa
dc.contributor.authorKarasiński, Jakub
dc.contributor.authorKrata, Agnieszka
dc.date.accessioned2024-01-24T21:54:01Z
dc.date.available2024-01-24T21:54:01Z
dc.date.issued2018
dc.description.financeNie dotyczy
dc.description.number1
dc.description.volume53
dc.identifier.doi10.1002/JMS.4039
dc.identifier.issn1076-5174
dc.identifier.urihttps://repozytorium.uw.edu.pl//handle/item/104937
dc.languageeng
dc.pbn.affiliationchemical sciences
dc.relation.ispartofJournal of Mass Spectrometry
dc.relation.pages78-82
dc.rightsClosedAccess
dc.sciencecloudnosend
dc.subject.encalcium isotope ratio
dc.subject.enion chromatography
dc.subject.enlow resolution MC-ICPMS
dc.subject.enon-line measurement
dc.titleDirect determination of δ44/42Ca isotope ratio by ion chromatography/low-resolution multicollector ICPMS
dc.typeJournalArticle
dspace.entity.typePublication