Cited by 133Geological and Geochemical AnalysisAnalytical chemistry methods developmentPaleontology and Stratigraphy of Fossils

An alternative data acquisition and evaluation strategy for improved isotope ratio precision using LA-MC-ICP-MS applied to stable and radiogenic strontium isotopes in carbonates

Fietzke, J., Liebetrau, V., Günther, D., Gürs, K., Hametner, K., Zumholz, K., Hansteen, T. H., Eisenhauer, A.·2008·Journal of Analytical Atomic Spectrometry

Abstract

Strontium isotopes in various marine carbonates were determined using an “AXIOM” MC-ICP-MS in combination with a NewWave UP193 laser ablation unit. Using a modified measurement and data reduction strategy, an external reproducibility of 87Sr/86Sr ratios in carbonates of about 19 ppm (RSD) was achieved. For recent and sub-recent marine carbonates a mean radiogenic strontium isotope ratio 87Sr/86Sr of 0.709170 ± 0.000007 (2SE) was determined, which agrees well with the value of 0.7091741 ± 0.0000024 (2SE) reported for modern sea water (J. M. McArthur, D. Rio, F. Massari, D. Castrodi, T. R. Bailey, M. Thirlwall and S. Houghton, Palaeogeogr. Palaeoclimatol. Palaeoeco., 2006, 242(126), 2006). Compared to published laser-based methods, an improved accuracy and precision was achieved by applying a new data reduction protocol using the simultaneous responses of all isotopes measured. The latter is considered as a new principal approach for isotope ratio evaluation using LA-MC-ICP-MS. A major advantage of the presented method is the direct determination of the stable strontium isotope fractionation. Providing reproducible sample ablation, introduction into the plasma and stable plasma condition, this method excludes the efforts of a quantitative strontium recovery after ion chromatographic separation to avoid additional fractionation of the sample strontium due to chemical pre-treatment/separation (ion chromatography and solution preparation), and is therefore, together with the quicker sample preparation and spatially resolved analysis, advantageous when compared to published solution–nebulization bracketing-standard MC-ICP-MS methods for stable strontium isotope determination.

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Crossref · 10.1039/b717706b

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Authors
Fietzke, J., Liebetrau, V., Günther, D., Gürs, K., Hametner, K., Zumholz, K., Hansteen, T. H., & Eisenhauer, A.
Affiliations
  • GEOMAR Helmholtz Centre for Ocean Research Kiel (DE)
  • ETH Zurich (CH)
Corresponding author
Fietzke, J.
Venue
Journal of Analytical Atomic Spectrometry
Published
2008
Volume
23
Issue
7
Pages
955
ISSN
  • 0267-9477 (ISSN-L)
  • 1364-5544
OpenAlex
W1984571476
Cited by
133
References
21
Citations by year
2025: 8 · 2024: 6 · 2023: 9 · 2022: 13 · 2021: 9 · 2020: 8 · 2019: 5 · 2018: 11 · 2017: 8 · 2016: 12 · 2015: 8 · 2014: 8 · 2013: 4 · 2012: 10
FWCI
4.22
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Analytical Atomic Spectrometry (publishedVersion)
  • Helmholtz Centre for Ocean Research Kiel (GEOMAR) (acceptedVersion)
Topics
  • Physical Sciences › Earth and Planetary Sciences › Geophysics › Geological and Geochemical Analysis
  • Physical Sciences › Chemistry › Analytical Chemistry › Analytical chemistry methods development
  • Physical Sciences › Earth and Planetary Sciences › Paleontology › Paleontology and Stratigraphy of Fossils
Keywords
strontium isotopes, 87Sr/86Sr, marine carbonates, laser ablation, MC-ICP-MS, isotope ratio precision, data reduction, stable isotope fractionation, radiogenic strontium

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