Article

Inorganic Materials

, Volume 48, Issue 14, pp 1272-1278

Chemical preparation of samples of dead automobile catalyzers for subsequent determination of platinum, palladium, and rhodium using atomic emission spectrometry with inductively coupled plasma

  • A. V. DyachkovaAffiliated withGiredmet State Research and Design Institute of the Rare Metals Industry
  • , T. M. MalutinaAffiliated withGiredmet State Research and Design Institute of the Rare Metals Industry
  • , T. Yu. AlekseevaAffiliated withOOO Anserteko Analytical, Ecological, and Certification Center
  • , Yu. A. KarpovAffiliated withGiredmet State Research and Design Institute of the Rare Metals Industry

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Abstract

Systematic studies of different methods for decomposition of samples of dead automobile catalyzers (ACs) on a ceramic base using mixtures of mineral acids and high-temperature alloying with the aim of subsequent determination of platinum, palladium, and rhodium using atomic emission spectrometry with inductively coupled plasma are presented. The behavior of matrix components of dead ACs under the conditions of sample decomposition is investigated. The effect of the results of determining platinum group metals is studied. The relative standard deviation of the results of the analysis performed according to the developed techniques is 11-9% at platinum, palladium, and rhodium concentrations ranging from 0.01 to 0.3%.

Keywords

automobile catalyzers (catalytic converters) platinum group metals atomic emission spectrometry with inductively coupled plasma chemical preparation of samples acid decomposition alloying