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The study and elimination of interferences in the determination of magnesium by atomic absorption spectrophotometry

Untersuchung und Eliminierung von Störungen bei der Bestimmung von Magnesium durch Atomabsorptions-Spektralphotometrie

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Zusammenfassung

Die optimalen Bedingungen sowie der Einfluß von 54 Ionen wurden untersucht. Durch Verwendung der N2O-Acetylen-Flamme werden alle Störungen vermieden. In der Luft-Acetylen-Flamme erwies sich die Methode der Standardzugaben als geeignet, außer bei Gegenwart von Silicat. Alle Störungen können auch in dieser Flamme unterbunden werden, wenn die Methode der Standardzugaben zusammen mit einem Zusatz eines anderen Erdalkalimetalls angewendet wird.

Summary

Optimum conditions and the influence of 54 ions on the determination of magnesium by atomic absorption spectrophotometry have been investigated. The use of the nitrous oxide-acetylene flame will remove any interference effects. In the air-acetylene flame the standard additions technique was studied and proved to be suitable except when silicate was present. Completely satisfactory determinations were obtained when the standard additions technique was applied to solutions containing an alkaline earth metal as a releasing agent.

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Authors and Affiliations

  1. Department of Analytical Chemistry, The Queen's University, Belfast, Northern Ireland

    W. A. Magill & G. Svehla

Authors
  1. W. A. Magill
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  2. G. Svehla
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Magill, W.A., Svehla, G. The study and elimination of interferences in the determination of magnesium by atomic absorption spectrophotometry. Z. Anal. Chem. 269, 337–339 (1974). https://doi.org/10.1007/BF00430712

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  • DOI: https://doi.org/10.1007/BF00430712

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