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A combination of thin-layer chromatography and emission spectroscopy for the microdetermination of alkaline earth metals

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Summary

Thin-layer chromatography of alkaline earth metals on cellulose has been modified. After detection of the metal ions with an oxine spray, identification and semiquantitative determination was carried out by liquid emission spectroscopy. The sensitivity of the method is 0.05 ppm for all cations tested. The smallest detectable change in concentration corresponds to about ±5% in a medium concentration range. Analysis errors were below 10%.

Zusammenfassung

Die Dünnschichtchromatographie der Erdalkalimetalle auf Zellulose wurde modifiziert. Die Metallionen werden durch Sprühen mit Oxin nachgewiesen, identifiziert und halb quantitativ durch Emissionsspektroskopie ihrer Lösungen bestimmt. Die Empfindlichkeit dieser Methode beträgt für alle untersuchten Kationen 0,05 ppm. Die geringsten im mittleren Bereich nachweisbaren Konzentrationsunterschiede betragen ±5%. Die Fehler liegen unter 10%.

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Authors and Affiliations

  1. Department of Chemistry, Dalhousie University, Halifax, N. S., Canada

    R. W. Frei & H. Stillman

Authors
  1. R. W. Frei
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  2. H. Stillman
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Frei, R.W., Stillman, H. A combination of thin-layer chromatography and emission spectroscopy for the microdetermination of alkaline earth metals. Mikrochim Acta 58, 184–189 (1970). https://doi.org/10.1007/BF01218114

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  • DOI: https://doi.org/10.1007/BF01218114

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