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Determination of Precious Metals in Metal Catalytic Converter
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    Abstract:

    The market prospect and industry management of metal catalytic converters in the automotive industry was analyzed. For the automotive metal catalytic converter samples, a determination method for precious metal Pt, Pd and Rh using ICP-MS was established. After soaked in 6 mol/L HCl solution, the sample turned into filtrate and insoluble, and then they were prepared into test solutions separately after tellurium co-precipitation. The method was co-verified by eight laboratories, and the results are as following: for Pt, Pd and Rh, the relative deviations between the determination results and the corresponding reference values are all less than 10%, and the reproducibility uncertainties are 6.6%, 6.5% and 5.8%, respectively. It is concluded that the method has low detection limits, high recoveries, good reproducibility and satisfactory feasibility

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[Li Jun, Liu Yue, Fang Maodong. Determination of Precious Metals in Metal Catalytic Converter[J]. Rare Metal Materials and Engineering,2015,44(4):871~875.]
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History
  • Received:April 17,2014
  • Revised:
  • Adopted:
  • Online: June 08,2015
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