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Trace metal impurities in silica as a cause of strongly interacting silanols

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Summary

The paper describes nuclear activation analysis of several chromatographic grade silicas for the determination of trace metals. The effect of acid washing is described and the effect of trace metals on the acidity of surface silanols is discussed. A correlation has been found between the concentration of metal traces in the layer of silica adjacent to the surface and the concentration of strongly interacting sites.

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Authors and Affiliations

  1. Faculty of Chemistry, A. Mickiewicz University, Grunwaldzka 6, PL-60-780, Poznań, Poland

    J. Nawrocki & W. Szczepaniak

  2. Trace Analysis Research Centre, Dalhousie University, B3H 4J1, Halifax, N. Scotia, Canada

    Debbie L. Moir

Authors
  1. J. Nawrocki
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  2. Debbie L. Moir
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  3. W. Szczepaniak
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Nawrocki, J., Moir, D.L. & Szczepaniak, W. Trace metal impurities in silica as a cause of strongly interacting silanols. Chromatographia 28, 143–147 (1989). https://doi.org/10.1007/BF02319636

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  • DOI: https://doi.org/10.1007/BF02319636

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