International comparison of the determination of the mass fraction of cadmium, chromium, mercury and lead in polypropylene: the Comité Consultatif pour la Quantité de Matière pilot study CCQM-P106

Lianda Ma, Liuxing Feng, A. Hioki, K. H. Cho, J. Vogl, A. Berger, Peter Vermaercke, , Liesel Sneyers

    Research outputpeer-review


    The CCQM-P106 pilot study was organized by the inorganic working group of the Comite´ Consultatif pour la Quantite´ de Matie`re (CCQM) as a feasibility comparison to study the applicability of different analysis methods to the polypropylene sample and test the abilities of the participants for measuring the Cd, Cr, Hg and Pb in polypropylene. Isotope dilution mass spectrometry (IDMS), inductively coupled plasma-mass spectrometry (ICP-MS), inductively coupled plasma-optical emission spectrometry (ICP-OES), atomic absorption spectrometry (AAS), instrumental neutron activation analysis (INAA) and X-ray fluorescence (XRF) measurement methods were used, and microwave digestion was used by the most of the participants. In general, very good agreement of the results was observed. In addition, the results of some analytes used by XRF and INAA also got satisfactory agreement with the median value.
    Original languageEnglish
    Pages (from-to)39-44
    JournalAccreditation and Quality Assurance
    Issue number1
    StatePublished - Jul 2010

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