Please use this identifier to cite or link to this item:
http://doi.org/10.25358/openscience-7070
Authors: | Weber, Michael Lugli, Federico Hattendorf, Bodo Scholz, Denis Mertz-Kraus, Regina Guinoiseau, Damien Jochum, Klaus Peter |
Title: | NanoSr – a new carbonate microanalytical reference material for in situ strontium isotope analysis |
Online publication date: | 2-Jun-2022 |
Year of first publication: | 2020 |
Language: | english |
Abstract: | The in situ measurement of Sr isotopes in carbonates by MC-ICP-MS is limited by the availability of suitable microanalytical reference materials (RMs), which match the samples of interest. Whereas several well-characterised carbonate reference materials for Sr mass fractions > 1000 µg g−1 are available, there is a lack of well-characterised carbonate microanalytical RMs with lower Sr mass fractions. Here, we present a new synthetic carbonate nanopowder RM with a Sr mass fraction of ca. 500 µg g−1 suitable for microanalytical Sr isotope research (‘NanoSr’). NanoSr was analysed by both solution-based and in situ techniques. Element mass fractions were determined using EPMA (Ca mass fraction), as well as laser ablation and solution ICP-MS in different laboratories. The 87Sr/86Sr ratio was determined by well-established bulk methods for Sr isotope measurements and is 0.70756 ± 0.00003 (2s). The Sr isotope microhomogeneity of the material was determined by LA-MC-ICP-MS, which resulted in 87Sr/86Sr ratios of 0.70753 ± 0.00007 (2s) and 0.70757 ± 0.00006 (2s), respectively, in agreement with the solution data within uncertainties. Thus, this new reference material is well suited to monitor and correct microanalytical Sr isotope measurements of low-Sr, low-REE carbonate samples. NanoSr is available from the corresponding author. |
DDC: | 540 Chemie 540 Chemistry and allied sciences 550 Geowissenschaften 550 Earth sciences |
Institution: | Johannes Gutenberg-Universität Mainz |
Department: | FB 09 Chemie, Pharmazie u. Geowissensch. |
Place: | Mainz |
ROR: | https://ror.org/023b0x485 |
DOI: | http://doi.org/10.25358/openscience-7070 |
Version: | Published version |
Publication type: | Zeitschriftenaufsatz |
License: | CC BY-NC-ND |
Information on rights of use: | https://creativecommons.org/licenses/by-nc-nd/4.0/ |
Journal: | Geostandards and geoanalytical research 44 1 |
Pages or article number: | 69 83 |
Publisher: | Wiley-Blackwell |
Publisher place: | Oxford |
Issue date: | 2020 |
ISSN: | 1751-908X |
Publisher DOI: | 10.1111/ggr.12296 |
Appears in collections: | JGU-Publikationen |
Files in This Item:
File | Description | Size | Format | ||
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nanosr__a_new_carbonate_micro-20220602094126344.pdf | 1.59 MB | Adobe PDF | View/Open |