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Nano-Powdered Calcium Carbonate Reference Materials: Significant Progress for Microanalysis?

MPS-Authors
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Jochum,  Klaus Peter
Climate Geochemistry, Max Planck Institute for Chemistry, Max Planck Society;

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Veter,  Marina
Climate Geochemistry, Max Planck Institute for Chemistry, Max Planck Society;

/persons/resource/persons101291

Stoll,  Brigitte
Climate Geochemistry, Max Planck Institute for Chemistry, Max Planck Society;

/persons/resource/persons101360

Weis,  Ulrike
Climate Geochemistry, Max Planck Institute for Chemistry, Max Planck Society;

/persons/resource/persons211162

Weber,  Michael
Climate Geochemistry, Max Planck Institute for Chemistry, Max Planck Society;

/persons/resource/persons213655

Jentzen,  Anna
Climate Geochemistry, Max Planck Institute for Chemistry, Max Planck Society;

/persons/resource/persons211164

Wassenburg,  Jasper A.
Climate Geochemistry, Max Planck Institute for Chemistry, Max Planck Society;

/persons/resource/persons187781

Haug,  Gerald H.
Climate Geochemistry, Max Planck Institute for Chemistry, Max Planck Society;

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Citation

Jochum, K. P., Garbe-Schoenberg, D., Veter, M., Stoll, B., Weis, U., Weber, M., et al. (2019). Nano-Powdered Calcium Carbonate Reference Materials: Significant Progress for Microanalysis? Geostandards and Geoanalytical Research. doi:10.1111/ggr.12292.


Cite as: http://hdl.handle.net/21.11116/0000-0004-CD6A-F
Abstract
Homogeneity, mass fractions of about forty trace elements and Sr isotope composition of Ca carbonate referencematerials (RMs) between original and nano-powdered pellets are compared. Our results using nanosecond andfemtosecond LA-(MC)-ICP-MS show that the nano-pellets of the RMs MACS-3NP, JCp-1NP and JCt-1NP are about afactor of 2–3 more homogeneous than the original samples MACS-3, JCp-1 and JCt-1, and are therefore much moresuitable for microanalytical purposes. With the exception of Si, the mass fractions of the synthetic RM MACS-3 agree withits fine-grained analogue MACS-3NP. Very small, but significant, differences between original and nano-pellets areobserved in the RMs JCp-1 and JCt-1 for some trace elements with very low contents, indicating the need for re-certification. Strontium mass fractions in the analysed RMs are high (1500–7000 mg kg-1), and their isotopecompositions determined by LA-MC-ICP-MS in the original and the nano-pellets agree within uncertainty limits.