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In situHf isotope analysis of cassiterite by LA-MC-ICP-MS: protocol and applications

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Yang,  Ming
3.1 Inorganic and Isotope Geochemistry, 3.0 Geochemistry, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;

Yang,  Yue-Heng
External Organizations;

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Romer,  R. L.
3.1 Inorganic and Isotope Geochemistry, 3.0 Geochemistry, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;

Wu,  Shi-Tou
External Organizations;

Wu,  Tao
External Organizations;

Wang,  Hao
External Organizations;

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Zitation

Yang, M., Yang, Y.-H., Romer, R. L., Wu, S.-T., Wu, T., Wang, H. (2023): In situHf isotope analysis of cassiterite by LA-MC-ICP-MS: protocol and applications. - Journal of Analytical Atomic Spectrometry, 38, 2, 437-448.
https://doi.org/10.1039/D2JA00340F


Zitierlink: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5015131
Zusammenfassung
We report the laser ablation multi-collector inductively coupled plasma mass spectrometry (LA-MC-ICP-MS) 176Hf/177Hf ratios for cassiterite of a known age and demonstrate that the 176Hf/177Hf ratios can be measured accurately and reproducibly with adequate precision for cassiterite with Hf contents around 100 μg g−1. Although cassiterite only has minor rare earth elements (REEs), corrections for Yb and Lu interferences are required as they may affect the determination of the 176Hf/177Hf ratios. Among the investigated samples, Rond-A has a homogeneous Hf isotopic composition. We recommend cassiterite sample Rond-A as a primary reference material for in situ Hf isotope analysis. The Kard sample has a homogeneous Hf isotopic composition and is suitable as a primary reference material once its Hf isotopic composition has been confirmed by solution-based MC-ICP-MS. Samples BB#7, 19MP, and 19GX showed minor variations in their Hf isotopic compositions and, therefore, can only be used as secondary reference materials.