Determination of Platinum-Group Elements (PGE) from catalytic converters in soil by means of docimasy and INAA.
The nickelsulfide fire assay (docimasy) for the enrichment of platinum-group elements (PGEs) has been modified for the use with small samples and combined with instrumental neutron-activation analysis (INAA). This procedure has been applied to the determination of PGEs exhausted from catalytic converters and deposited in soil near the Wiesbadener Kreuz (highway A3, Frankfurt-Köln). Our results show a considerable enhancement of the Pt (up to 330 ng/g), Pd (6.6 ng/g) and Rh (7.5 ng/g) contents close to the highway.
Heinrich
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Institut für Kernchemie, Johannes Gutenberg-Universität Mainz, Fritz Strassmann-Weg 2, D-55099, Mainz, Germany.
Schmidt
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Kratz
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