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Determination of Pt from coke samples by ICP-MS after microwave assisted digestion and microwave assisted cloud point extraction

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Abstract

Platinum in coke samples was determined by inductively coupled plasma mass spectrometry (ICP-MS) after microwave-assisted sample digestion and temperature controlled microwave assisted cloud point extraction (MW-CPE). Interferences due to hafnium (179Hf16O) were successfully eliminated using MW-CPE with 2-MBT prior to the determination of platinum by ICP-MS. The validity of the method was studied by spike recovery tests and by analyzing certified reference material (BCR-723 street dust). The results obtained for platinum in the BCR-723 were generally in good agreement with the certified values. Furthermore, the preliminary platinum results obtained for coke sample by ICP-MS after MW-CPE were compared to those obtained by a reference method (NiS-Fire Assay preconcentration/Te coprecipitation and ICP-MS determination).

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Acknowledgements

The research was funded by the Academy of Finland within the framework of the project “Inorganic compounds of coke”. The authors are grateful to Seija Liikanen and Päivi Vesala (University of Oulu, Department of Chemistry) for helping with sample digestion and analysis.

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Authors and Affiliations

  1. Department of Chemistry, University of Oulu, P.O. Box 3000, 90014, Oulu, Finland

    Matti Niemelä & Paavo Perämäki

  2. Laboratory of Process Metallurgy, University of Oulu, P.O. Box 4300, 90014, Oulu, Finland

    Satu M. Huttunen & Stanislav S. Gornostayev

Authors
  1. Matti Niemelä
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  2. Satu M. Huttunen
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  3. Stanislav S. Gornostayev
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  4. Paavo Perämäki
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Correspondence to Paavo Perämäki.

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Niemelä, M., Huttunen, S.M., Gornostayev, S.S. et al. Determination of Pt from coke samples by ICP-MS after microwave assisted digestion and microwave assisted cloud point extraction. Microchim Acta 166, 255–260 (2009). https://doi.org/10.1007/s00604-009-0194-7

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  • DOI: https://doi.org/10.1007/s00604-009-0194-7

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