Preparation and characterisation of IAEA-603, a new primary reference material aimed at the VPDB scale realisation for δ13 C and δ18 O determination.
Sergey AssonovManfred GroeningAles FajgeljJean-Francois HélieClaude Hillaire-MarcelPublished in: Rapid communications in mass spectrometry : RCM (2020)
The new primary RM IAEA-603 replaces NBS19 in its use as the highest calibrator for the VPDB δ13 C and δ18 O scale, including the VPDB-CO2 δ18 O scale. The use of IAEA-603 will allow laboratories worldwide to establish consistent realisation of the scales for δ13 C and δ18 O values and metrological comparability of measurement results for decades. The VPDB scale definition based on NBS19 stays valid.
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