Since the 1990s, the automotive industry has become the largest consumer of platinum (Pt), palladium (Pd), and rhodium (Rh) on account of the arrival of catalytic converters in car exhaust systems. Approximately 40% of the total Pt, 74% of the total Pd and 80% of the total Rh were consumed by the auto catalyst industry in 2012.
Malvern Panalytical has developed a simple sodium peroxide fusion method, for the dissolution of automotive catalytic converters substrates samples. Combined with a simultaneous ICP-OES, it yields good accuracy and precision for the determination of Pt, Pd and Rh contents in autocatalysts. The Claisse® fusion method is quick, allows total sample dissolution, eliminates the use of dangerous acids and demonstrates good accuracy, precision and recovery for Pt, Pd and Rh.
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