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The Calcium Isotope Composition (δ44/40Ca) of NIST SRM 915b and NIST SRM 1486 |
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| Authors: | Alexander Heuser Anton Eisenhauer |
| Institution: | 1. Leibniz‐Institut für Meereswissenschaften Kiel (IFM‐GEOMAR), Dienstgeb?ude Ostufer, Wischhofstrasse 1‐3, 24148 Kiel, Germany;2. Steinmann‐Institut für Geologie, Mineralogie und Pal?ontologie, Universit?t Bonn, Poppelsdorfer Schloss, 53115 Bonn, Germany |
| Abstract: | The calcium isotopic composition of NIST SRM 915b and 1486 provided by the National Institute of Standards and Technology was analysed. The δ44/40Ca values of the two reference materials relative to NIST SRM 915a were: NIST SRM 915b =+0.72 ± 0.04‰ and NIST SRM 1486 =?1.01 ± 0.02‰. NIST SRM 1486 did not require any chemical separation prior to measurement. |
| Keywords: | Ca isotopes δ 44/40Ca NIST SRM 915b NIST SRM 915a NIST SRM 1486 isotopes de Ca δ 44/40Ca NIST SRM 915b NIST SRM 915a NIST SRM 1486 |