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    Molybdenum Isotope Materials

    Molybdenum isotope ratios 97Mo/95Mo and 98Mo/95Mo have been used primarily for studies of small isotopic variations. The natural δ(98/95Mo) isotopic variations cover a range from −1.5 to +3 ‰ relative to NIST SRM 3134.

    δ(98/95Mo) Values of Reference Materials

    Name Material δSRM3134(98/95Mo)
    NIST SRM 3134solution 0 ‰*
    NIST SRM 610solid glass+0.06(9) ‰
    NIST SRM 612solid glass+0.04(10) ‰
    OSIL IAPSOseawater+2.09(7) ‰
    SCP Science-PlasmaCal-0.42(5) ‰
    JMC 726Mo rod-0.45(6) ‰
    Name Material δSRM3134(98/95Mo)

    Footnotes      Back to Top
    * Exact value defining the δ(98/94Mo) SRM3134 scale.
    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.


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