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<p>Due to its unique properties, various forms of graphite are one of the most widely utilized industrial materials. HIPC-1, a high-purity graphite certified reference material, was developed at the National Research Council of Canada as a calibrant for carbon isotope delta and carbon mass fraction measurements. The certified carbon isotope delta value was calibrated using ten reference materials and is reported on both the VPDB-LSVEC scale (−26.32 ± 0.11&#xa0;‰, <i>k</i> = 2) and the VPDB scale (−26.21 ± 0.11&#xa0;‰, <i>k</i> = 2). The expanded uncertainty includes contributions from characterization, coherence of the carbon isotope delta reference materials, and bottle to bottle homogeneity of HIPC-1. Elemental impurities and the mass fraction of carbon in HIPC-1 were determined using glow discharge mass spectrometry (GD-MS), and the certified value of the mass fraction of carbon is 0.999889 ± 0.000268&#xa0;kg/kg (<i>k</i> = 2).</p> Graphical Abstract <p></p>

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Characterization of trace element impurities and carbon isotope delta in HIPC-1, a high-purity graphite certified reference material

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年3月12日

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  • Michelle M. G. Chartrand,
  • Lu Yang,
  • Brad Methven,
  • Ovidiu Mihai,
  • Jean-Francois Hélie,
  • Agnieszka Adamowicz-Walczak,
  • Paul Middlestead,
  • Zoltán Mester,
  • Juris Meija

摘要

Due to its unique properties, various forms of graphite are one of the most widely utilized industrial materials. HIPC-1, a high-purity graphite certified reference material, was developed at the National Research Council of Canada as a calibrant for carbon isotope delta and carbon mass fraction measurements. The certified carbon isotope delta value was calibrated using ten reference materials and is reported on both the VPDB-LSVEC scale (−26.32 ± 0.11 ‰, k = 2) and the VPDB scale (−26.21 ± 0.11 ‰, k = 2). The expanded uncertainty includes contributions from characterization, coherence of the carbon isotope delta reference materials, and bottle to bottle homogeneity of HIPC-1. Elemental impurities and the mass fraction of carbon in HIPC-1 were determined using glow discharge mass spectrometry (GD-MS), and the certified value of the mass fraction of carbon is 0.999889 ± 0.000268 kg/kg (k = 2).

Graphical Abstract