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AAS determination of Co, Ni, Mn and Cr in ores, concentrates and dusts from copper metallurgy after matrix elements separation by extraction

AAS-Bestimmung von Co, Ni, Mn und Cr in Erzen, Konzentraten und Stäuben aus dem Bereich der Kupfermetallurgie nach Abtrennung der Matrixelemente durch Extraction

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Zusammenfassung

Das beschriebene Verfahren eignet sich für den Bereich von 10−3 bis 10−1%. Die Matrixelemente (Cu, Pb, Zn, Fe) wurden als Ionenpaare ohne Verluste an Co, Ni, Mn und Cr mit Hilfe einer zweistufigen Extraktion abgetrennt: mit MIBK aus 6 M HCl-Lösung und mit 0,1 M Tetrahexylammoniumiodid (THAI) in MIBK aus 3 M HCl-Lösung. Die relativen Stadardabweichungen lagen im Bereich von 2,0 bis 6,0%.

Summary

A method has been developed for the AAS determination of Co, Ni, Mn and Cr in ores, concentrates and dusts of copper metallurgy at the 10−3–10−1% level. The matrix elements (Cu, Pb, Zn, Fe) were separated in a two-stage extraction: with MIBK from 6 M HCl solution and with 0.1 M tetrahexylammonium iodide (THAI) in MIBK from 3 M HCl, in form of ion-pairs, without Co, Ni, Mn and Cr losses. Values of r.s.d. were 2.0–6.0%.

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Authors and Affiliations

  1. Department of Chemistry, Warsaw Technical University, PL-00-664, Warsaw, Noakowskiego 3, Poland

    Elwira Lachowicz & Anna Kaliszuk

Authors
  1. Elwira Lachowicz
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  2. Anna Kaliszuk
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Lachowicz, E., Kaliszuk, A. AAS determination of Co, Ni, Mn and Cr in ores, concentrates and dusts from copper metallurgy after matrix elements separation by extraction. Z. Anal. Chem. 323, 54–56 (1986). https://doi.org/10.1007/BF00531132

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  • DOI: https://doi.org/10.1007/BF00531132

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