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Enrichment procedures for small quantities of metals by organometallic and other coprecipitation techniques for X-ray fluorescence analysis

Anreicherungsverfahren für Spurenelemente durch Mitfällung in Form organischer Komplexe und anderer Verbindungen für die röntgenspektroskopische Analyse

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Zusammenfassung

Verschiedene Anforderungen werden beschrieben, die an ein verbessertes Anreicherungsverfahren gestellt werden. Als ausgezeichnete Fällungsmittel erwiesen sich Alizarinblau, Phenylfluoron und Kupferron. Zweckmäßige anorganische Niederschläge sind Fluoride und reduzierte Metalle. Andere Fällungsverfahren werden für einige Elemente benutzt, wenn die Reaktionen selektiv sind und die Röntgenintensität höher ist.

Summary

Enrichment procedures for small quantities of metals by organometallic and other coprecipitation techniques for X-ray fluorescence analysis were studied. In order to obtain a higher X-ray intensity and good reproducibility in the measurements, five requirements were considered for the precipitants and for the precipitate. Favourable organic precipitants are mainly alizarine blue, phenyl fluorone, and cupferron, good inorganic precipitates were fluorides and reduced metals. Other precipitation procedures can be applied to some metal elements, if the precipitation reaction is selective and a higher X-ray intensity is obtained.

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Authors and Affiliations

  1. The Research Institute for Iron, Steel and Other Metals, Tohoku University, Sendai, Japan

    Kichinosuke Hirokawa

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  1. Kichinosuke Hirokawa
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Hirokawa, K. Enrichment procedures for small quantities of metals by organometallic and other coprecipitation techniques for X-ray fluorescence analysis. Z. Anal. Chem. 260, 4–7 (1972). https://doi.org/10.1007/BF00437518

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  • DOI: https://doi.org/10.1007/BF00437518

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