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Strontium, Neodymium and Lead Isotope Analyses of NIST Glass Certified Reference Materials: SRM 610, 612, 614
Author(s) -
Woodhead Jon D.,
Hergt Janet M.
Publication year - 2001
Publication title -
geostandards newsletter
Language(s) - English
Resource type - Journals
eISSN - 1751-908X
pISSN - 0150-5505
DOI - 10.1111/j.1751-908x.2001.tb00601.x
Subject(s) - nist , certified reference materials , strontium , trace element , calibration , isotope , mineralogy , analytical chemistry (journal) , mass spectrometry , neodymium , materials science , radiochemistry , chemistry , environmental chemistry , metallurgy , laser , computer science , chromatography , detection limit , physics , optics , nuclear physics , natural language processing , organic chemistry , quantum mechanics
The NIST glass certified reference materials, SRM 610‐617, have been widely adopted by the geological community as calibration samples for a variety of in situ trace element analytical techniques. There is now an urgent requirement for similar reference materials for in situ isotopic analytical techniques. We have analysed SRM 610, 612 and 614 for their Pb, Sr and Nd isotopic compositions using thermal ionisation mass spectrometry. Large differences in isotopic composition were observed between each CRM, suggesting a significant trace element content in the initial starting material (base glass). As a result, isotopic compositions for one CRM cannot be extrapolated to another, and each must be calibrated for use independently. We present the first compilation of working values for these glasses.
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