Spectrophotometric determination of iron in sea-water by solvent extraction as the ternary complex iron(II)-2-nitroso-4-chlorophenol-rhodamine B.
Iron has been determined in sea-water by extraction of the ternary complex of iron(II) with 2-nitroso-4-chlorophenol and Rhodamine B at pH 4.7 and measurement at 558 nm. Toluene is used as the organic solvent. Any iron(III) is reduced with hydroxylammonium chloride.
Korenaga
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Department of Chemistry Faculty of Science Okayama University 3-1-1, Tsushimanaka Okayama-shi 700, Japan.
Motomizu
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S
Tôei
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