Lithium Isotope Composition of Basalt Glass Reference Material

Kasemann, Simone A.; Jeffcoate, and Alistair B.; Elliott, Tim

doi:10.1021/ac048178h

Cited by 84 publications

(113 citation statements)

References 33 publications

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“…Copper has two stable isotopes, 63 Cu and 65 Cu, with isotopic abundances of 69.2 and 30.8 %, respectively, in naturally occurring terrestrial material. Isotopic variations are measured relative to NIST SRM 976 and reported as δ 65 Cu SRM976 values.…”

Section: /58mentioning

confidence: 99%

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Assessment of international reference materials for isotope-ratio analysis (IUPAC Technical Report)

Brand

Coplen

Vogl

et al. 2014

Pure and Applied Chemistry

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436

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Abstract:Since the early 1950s, the number of international measurement standards for anchoring stable isotope delta scales has mushroomed from 3 to more than 30, expanding to more than 25 chemical elements. With the development of new instrumentation, along with new and improved measurement procedures for studying naturally occurring isotopic abundance variations in natural and technical samples, the number of internationally distributed, secondary isotopic reference materials with a specified delta value has blossomed in the last six decades to more than 150 materials. More than half of these isotopic reference materials were produced for isotope-delta measurements of seven elements: H, Li, B, C, N, O, and S. The number of isotopic reference materials for other, heavier elements has grown considerably over the last decade. Nevertheless, even primary international measurement standards for isotope-delta measurements are still needed for some elements, including Mg, Fe, Te, Sb, Mo, and Ge. It is recommended that authors publish the delta values of internationally distributed, secondary isotopic reference materials that were used for anchoring their measurement results to the respective primary stable isotope scale.

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Section: /58mentioning

confidence: 99%

“…Isotopic variations are measured relative to NIST SRM 976 and reported as δ 65 Cu SRM976 values. Natural samples cover a range of roughly 16 ‰ with the most positive values found in carbonates and the most negative values in copper chlorides [32].…”

Section: /58mentioning

confidence: 99%

Assessment of international reference materials for isotope-ratio analysis (IUPAC Technical Report)

Brand

Coplen

Vogl

et al. 2014

Pure and Applied Chemistry

565

436

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“…Triton thermal ionization mass spectrometer (TIMS) at the University of Bristol, following 215 the method of Kasemann et al (2005). The Li concentration of the spike was calibrated 216 against a gravimetric solution of the NIST Li isotope standard, SRM 8545 (L-SVEC).…”

Section: Determination Of LI Concentration By Isotope Dilution 210mentioning

confidence: 99%

The influence of melt infiltration on the Li and Mg isotopic composition of the Horoman Peridotite Massif

Lai

Strandmann

Dohmen

et al. 2015

Geochimica et Cosmochimica Acta

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“…12.173 (Flesch et al, 1973), and the reported ratios of 12.568 and 12.553 (Kasemann et al, 2005) were taken for NIST 610 and NIST 612, respectively.…”

Section: Accepted Manuscriptmentioning

confidence: 99%

In situ lithium and boron isotope determinations in mica, pyroxene, and serpentine by LA-MC-ICP-MS

2015

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Boron and Li are light, incompatible elements that preferentially partition into the liquid phase, whether melt or aqueous fluid, and thus are useful for tracking fluid-related processes in rocks.Most of the Li isotopic data presently available on subduction-related rocks are from whole-rock analyses; and the B isotopic analyses of subduction material have been carried out either on whole-rocks or in-situ on an accessory phase, such as tourmaline. The new method presented here couples an ESI New Wave UP-193-FX ArF* (193 nm) excimer laser-ablation microscope with a Neptune Plus (Thermo Scientific) MC-ICP-MS aiming to measure both Li and B isotopes in situ with good spatial resolution (metamorphic minerals are commonly chemically zoned, and A C C E P T E D M A N U S C R I P T ACCEPTED MANUSCRIPT 2 whole-rock analyses lose this detail). The data thus obtained are compared with SIMS analyses on the same mineral samples for B, and with MC-ICP-MS analyses on whole-rock or mineral separates from the same sample for Li. Additionally, data acquired on tourmaline standards were compared to SIMS values. The results show that for B concentrations above 5 µg/g, the data obtained by LA-MC-ICP-MS and by SIMS are identical within error, for mica (phengitic muscovite), pyroxene (jadeite), serpentine (antigorite), and tourmaline. For Li concentrations above 10 µg/g, the data obtained by LA-MC-ICP-MS and by MC-ICP-MS are also identical, within error, for mica (phengitic muscovite), and pyroxene (jadeite). However, analyses of tourmaline standards have shown significant differences with reference values, so LA-MC-ICP-MS does not yet appear to be an appropriate method to analyze Li isotopes in tourmalines.Thus, LA-MC-ICP-MS is a suitable method to measure Li and B isotopes with good spatial resolution in major rock-forming silicates from subduction-related rocks where concentrations exceed 10 µg/g and 5 µg/g, respectively, with an error on individual measurements equal to or less than previously used methods, but obtainable in a significantly shorter amount of time. The external reproducibility is ± 2.88 to 3.31 ‰ for B and ± 1.50 to 1.75 for Li, which is lower than or equal to the variations encountered within a given chemically zoned sample (up to 10 ‰ of variation within a given natural sample).

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Lithium Isotope Composition of Basalt Glass Reference Material

Cited by 84 publications

References 33 publications

Assessment of international reference materials for isotope-ratio analysis (IUPAC Technical Report)

Assessment of international reference materials for isotope-ratio analysis (IUPAC Technical Report)

The influence of melt infiltration on the Li and Mg isotopic composition of the Horoman Peridotite Massif

In situ lithium and boron isotope determinations in mica, pyroxene, and serpentine by LA-MC-ICP-MS

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