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    Silicon Isotope Materials

    While being the second most abundant element on Earth, silicon isotopes have found only limited applications. This may be due to the fact that the variation in silicon isotopic composition is small.


    δ30/28Si Values of Reference Materials

    Name Material δ30/28SiNBS28
    NBS 28 (NIST RM 8546)silica sand (optical) 0 ‰ *
    IRMM-017elemental Si-1.41(7) ‰
    IRMM-018aelemental Si 0 ‰
    IRMM-018quartz-1.65(1) ‰
    BHVO-2basalt-0.27(8) ‰
    USGS SGR-1bshale+0.01(4) ‰
    Name Material δ30/28SiNBS28

    Footnotes      Back to Top
    * Exact value defining the δ30/28SiNBS28 scale.
    ** See the Assessment of international reference materials for isotope-ratio analysis for more details.
    Values in parenthesis are expanded (k = 2) uncertainties applicable to the last digits. The values listed in this table are compilation and are not necessarily CIAAW recommendations.

    Citation

    W.A. Brand et al
    Assessment of international reference materials for isotope-ratio analysis Pure and Applied Chemistry 86, 425-467 (2014)