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    Silver Isotope Materials

    Most natural samples exhibit only very small deviations from the reference material NIST SRM 978a. Using multi-collector ICP-MS, a δ(109Ag) measurement uncertainty of 0.05 ‰ or better can be achieved. This allows detecting commercial products fortified with silver by identifying variations

    δ(109Ag) Values of Reference Materials

    Name Material δSRM978a(109Ag)
    NIST SRM 978aAgNO3 0 ‰ *
    Name Material δSRM978a(109Ag)

    Footnotes      Back to Top
    * Exact value defining the δ(109Ag) SRM978a scale.
    The values listed in this table are compilation and are not necessarily CIAAW recommendations.


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