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|Title:||Reference measurement procedures for the quantification of platinum-group elements (PGEs) from automotive exhaust emissions|
|Authors:||LABARRAQUE Guillaume; OSTER Caroline; FISICARO Paola; MEYER Christian; VOGL J.; NOORDMANN J.; RIENITZ O.; RICCOBONO FRANCESCO; DONET Sébastien|
|Citation:||INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY vol. 95 no. 9 p. 777-789|
|Publisher:||TAYLOR & FRANCIS LTD|
|Type:||Articles in periodicals and books|
|Abstract:||The major source of the anthropogenic platinum group element (PGE) emission is attributed to the use of catalytic converters in automobiles. This paper describes the work performed by three National Metrology Institutes (Laboratoire national de métrologie et d’essais, by the Physikalisch-technische bundesanstalt, Bundesanatalt für materialforschung und prûfung), in the framework of the Joint Research Project ‘PartEmission’ under the European Metrology Research Program. An analytical procedure based on a cationic exchange protocol and the isotope dilution or standard addition using an Inductived Coupled Plasma Mass Spectrometer, ICP-MS, for the quantification of the elements Pt, Pd and Rh from automotive exhaust emissions is described. Results obtained on a road dust certified reference (BCR 723) material showed a good agreement with the certified values, at ng/g levels, and relative expanded uncertainties within the range of 7–10%. Analysis of filters impacted with automotive exhaust particle emissions (from a diesel engine) showed the amount of collected PGE at levels of 10–1000 pg/filter. Their quantifications followed the developed analytical protocol that had been carried out with relative expanded uncertainties in the range of a few per cent up to 20% per filter. Nevertheless, a lack of homogeneity between the filters was observed, making the comparison between the project partners difficult in the sake of the validation of their analytical procedures on real samples.|
|JRC Directorate:||Energy, Transport and Climate|
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