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Optimization of slurry nebulization inductively-coupled plasma atomic emission spectrometry for the analysis of ZrO2-powder

  • Original Papers
  • Inorganic Analysis And Inorganic Materials
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Summary

The optimization and use of ICP-AES with slurry nebulization for the direct analysis of ZrO2-powder is described. The powder samples are dispersed in water, acidified to pH 2 and the slurry is fed into a Babington nebulizer. The effects of grain size, pH of the suspending medium and standing time on the stability of the slurry are discussed. For the optimization of the ICP operating conditions, a simplex technique is applied and for this purpose three types of objective functions were examined. Identical behaviour of slurries and solutions with the same matrix concentrations in the ICP-AES is achieved for powders with particle sizes lower than 10 μm; in the latter case calibration can be performed by standard addition with aqueous solutions. The detection limits for Al, B, Ca, Cu, Fe, Mg, Mn, Na, Ti, V. Y are 0.03 μg/g to 10 μg/g and the standard deviation is generally lower than 10%. Six commercially available ZrO2 powders are analyzed by slurry nebulization ICP-AES and the results were found to agree well with those obtained by ICP-AES after chemical decomposition of the samples.

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Author notes

  1. W. Van Borm

    Present address: DSM Research, Section FA-AE, P.O. Box 18, 6160 MD, Geleen, The Netherlands

  2. J. A. C. Broekaert

    Present address: Department of Chemistry, University of Dortmund, P.O. Box 500 500, W-4600, Dortmund 50, Federal Republic of Germany

Authors and Affiliations

  1. Laboratorium für Reinststoffanalytik, Max-Planck Institut für Metallforschung, Stuttgart, Bunsen-Kirchhoff-Strasse 13, W-4600, Dortmund 1, Federal Republic of Germany

    R. Łobiński, P. Tschöpel & G. Tölg

  2. Institut für Spektrochemie und angewandte Spektroskopie, Bunsen-Kirchhoff-Strasse 11, W-4600, Dortmund 1, Federal Republic of Germany

    W. Van Borm, J. A. C. Broekaert & G. Tölg

Authors
  1. R. Łobiński
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  2. W. Van Borm
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  3. J. A. C. Broekaert
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  4. P. Tschöpel
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  5. G. Tölg
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Additional information

On leave from Department of Analytical Chemistry, Technical University, PL-00-664 Warsaw, Poland

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Łobiński, R., Van Borm, W., Broekaert, J.A.C. et al. Optimization of slurry nebulization inductively-coupled plasma atomic emission spectrometry for the analysis of ZrO2-powder. Fresenius J Anal Chem 342, 563–568 (1992). https://doi.org/10.1007/BF00321915

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  • DOI: https://doi.org/10.1007/BF00321915

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