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Vol. 32 No. 4
July-August 2010

The Project Place | Information about new, current, and complete IUPAC projects and related initiatives.
See also www.iupac.org/projects

Technical Guidelines for Isotope Abundances and Atomic Weight Measurements

The Commission on Isotopic Abundances and Atomic Weights is charged with the responsibility of evaluating published data that presents new evidence on isotopic abundance measurements and consequent atomic weight values. Recommendations emerging from such evaluations, which are carried out every two years, are confirmed by IUPAC before dissemination to the scientific community. Experience at recent commission meetings has indicated that there is sometimes a lack of understanding regarding the isotopic information required. Details of the mass spectrometric protocols, including an accurate assessment of the uncertainties associated with the isotope abundance measurements, should be provided in the published work to enable the commission to evaluate the measurement results of researchers. The extent of the mass spectrometric protocols required are not always well-understood by workers in the field of isotope abundance measurements, especially with respect to uncertainty calculations. To this end, the commission will produce a readily understandable paper on the Technical Guidelines required to enable mass spectrometrists to report their data in a form suitable for evaluation.

For more information contact the task group chair John R. de Laeter <j.delaeter@curtin.edu.au>.

www.iupac.org/web/ins/2009-025-1-200


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