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| New calcium carbonate nano‐particulate pressed powder pellet (NFHS‐2‐NP) for LA‐ICP‐OES, LA‐(MC)‐ICP‐MS and µXRF Boer, W.; Nordstad, S.; Weber, M.; Mertz-Kraus, R.; Hönisch, B.; Bijma, J.; Raitzsch, M.; Wilhelms-Dick, D.; Foster, G.L.; Goring-Harford, H.; Nürnberg, D.; Hauff, F.; Kuhnert, H.; Lugli, F.; Spero, H.; Rosner, M.; van Gaever, P.; de Nooijer, L.J.; Reichart, G.-J. (2022). New calcium carbonate nano‐particulate pressed powder pellet (NFHS‐2‐NP) for LA‐ICP‐OES, LA‐(MC)‐ICP‐MS and µXRF. Geostand. Geoanal. Res. 46(3): 411-432. https://dx.doi.org/10.1111/ggr.12425
In: Geostandards and Geoanalytical Research. International Association of Geoanalysts/Wiley: Vandoeuvre-lès-Nancy. ISSN 1639-4488; e-ISSN 1751-908X, meer
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| Abstract |
A new matrix-matched reference material has been developed – NFHS-2-NP (NIOZ Foraminifera House Standard-2-Nano-Pellet) – with element mass fractions, and isotope ratios resembling that of natural foraminiferal calcium carbonate. A 180–355 µm size fraction of planktic foraminifera was milled to nano-particles and pressed to pellets. We report reference and information values for mass fractions of forty-six elements measured by six laboratories as well as for 87Sr/86Sr (threelaboratories), δ13C, δ18O a(five laboratories), and 206,207,208Pb/204Pb isotope ratios (one laboratory) determined by ICP-MS, ICP-OES, MC-ICP-MS, IRMS, WD-XRF and TIMS. Inter- and intra-pellet elemental homogeneity was tested using multiple LA-ICP-MS analyses in two laboratories applying spot sizes of 60 and 70 µm. The LA-ICP-MS results for most of the elements relevant as proxies for palaeoclimate research show RSD values < 3%, demonstrating asatisfactory homogeneous composition. Homogeneity of 87Sr/ 86Sr ratios of the pellet was verified by repeated LA-MC-ICP-MS by two laboratories. Information values are reported for Pb isotope ratios and δ13C, δ18O values. The homogeneity for these isotope systems remains to be tested by LA-MC-ICP-MS and SIMS. Overall, our results confirm the suitability of NFHS-2-NP for calibration or monitoring the quality of in situ geochemical techniques. |
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