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Spectrophotometric determination of oxidized iron in potassium hydroxide with 2,2′-dipyridyl ketoxime

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Summary

A spectrophotometric method for the determination of oxidized iron in potassium hydroxide with 2,2′-dipyridyl ketoxime is described. The effects due to potassium hydroxide concentration, heating time, sodium hydrosulfite concentration, reagent concentration, solvents, metallic iron and diverse ions are reported. The system shows a molar absorptivity of 1.6·1041mol−1 cm−1 at 548 nm.

Zusammenfassung

Eine spektrophotometrische Methode zur Bestimmung von oxydiertem Eisen in Kalilauge mit 2,2′-Dipyridylketoxim wurde beschrieben. Der Einfluß der Kalilauge-Konzentration, der Erhitzungsdauer, der Natriumhydrogensulfit-Konzentration, der Reagenskonzentration, der Lösungsmittel, von elementarem Eisen und von verschiedenen Fremdionen wurde angegeben. Der Extinktionskoeffizient beträgt 1,6·104 1·mol−1·cm−1 bei 548 nm.

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DePooter, M., Holland, W. & Bozic, J. Spectrophotometric determination of oxidized iron in potassium hydroxide with 2,2′-dipyridyl ketoxime. Mikrochim Acta 64, 443–448 (1975). https://doi.org/10.1007/BF01219211

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  • DOI: https://doi.org/10.1007/BF01219211

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