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The accurate determination of the platinum group elements (PGEs) in environmental samples has become a particularly important in the past few years with the introduction of new legislation regulating the fitting of catalytic converters to petrol vehicles [1]. The emission of PGEs autocatalysts represents a potentially, highly mobile source of environmental contamination. Pt, Pd and Rh from catalyst degradation are deposited along roadways. Although inert in metallic form, platinum salts pose a real health risk. Th...