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Separation of Cr(III) and Cr(VI) using melamine-formaldehyde resin and determination of both species in water by FAAS

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  • Inorganic Analysis
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Abstract

A method is described for the determination of Cr(VI) and total chromium by FAAS. Cr(VI) is separated from Cr(III) by adsorption on melamine-formaldehyde resin. After elution of Cr(VI) with 0.1 mol/l NaAc solution, it is analysed by FAAS. Total chromium is determined by FAAS after conversion of Cr(III) to Cr(VI) by oxidation with hydrogen peroxide, total Cr(VI) is concentrated as above. If the total concentration of chromium is sufficient, the determination can be directly made by FAAS. Cr(III) can then be calculated by subtracting Cr(VI) from the total Cr. This method was successfully applied to the determination of chromium in lake water.

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Authors and Affiliations

  1. Department of Chemistry, Faculty of Science and Letters, Istanbul Technical University, Maslak, 80626, Istanbul, Turkey

    B. Demirata

  2. Department of Chemistry, Faculty of Engineering, Istanbul University, Avcilar, 34840, Istanbul, Turkey

    I. Tor & H. Filik

  3. Department of Chemistry, Faculty of Science, Yildiz Technical University, Şişli, 80270, Istanbul, Turkey

    H. Afşar

Authors
  1. B. Demirata
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  2. I. Tor
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  3. H. Filik
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  4. H. Afşar
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Demirata, B., Tor, I., Filik, H. et al. Separation of Cr(III) and Cr(VI) using melamine-formaldehyde resin and determination of both species in water by FAAS. Fresenius J Anal Chem 356, 375–377 (1996). https://doi.org/10.1007/s0021663560375

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  • DOI: https://doi.org/10.1007/s0021663560375

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