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Determination of Reactive and Total Iron in Fresh Waters Filtered with Various Membranes

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Abstract

The reactive iron contents of fresh water samples filtered with membrane and ultrafiltration filters were determined by an isotope dilution method using the solvent extraction of 4,7-diphenyl-l,10-phenanthroline(bathophe-nanthroline)-Fe complex into 3-methyl-l -butanol (isoamyl alcohol). The total iron contents were determined in the same manner after digestion and dissolution with perchloric acid and hydrofluoric acid. Only small amounts of reactive iron were found in water samples collected upstream, at the reservoir and underground. It is noted that almost all iron in these water samples is present as stable forms. Considerable amounts of reactive iron were found in downstream water, especially as surface species on particulates larger than 5 ώm.

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Authors and Affiliations

  1. Radioisotope Center, Kyushu University, Higashi, Fukuoka, 812, Japan

    Susnmu Osaki

  2. Department of Chemistry, Faculty of Science, Kyushu University, Higashi, Fukuoka, 812, Japan

    Yasnhiro Kuroki, Naoshi Mannen & Yoshimasa Takashima

Authors
  1. Susnmu Osaki
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  2. Yasnhiro Kuroki
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  3. Naoshi Mannen
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  4. Yoshimasa Takashima
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Osaki, S., Kuroki, Y., Mannen, N. et al. Determination of Reactive and Total Iron in Fresh Waters Filtered with Various Membranes. ANAL. SCI. 2, 57–60 (1986). https://doi.org/10.2116/analsci.2.57

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  • DOI: https://doi.org/10.2116/analsci.2.57

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