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Polyvinyl chloride film impregnated with bathophenanthroline for rapid colorimetric determination of ferrous ion in water

Mit Bathophenanthrolin imprägnierte Polyvinylchloridfilme zur raschen colorimetrischen Bestimmung von Eisen (II) in Wasser

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Zusammenfassung

Zur schnellen halbquantitativen Bestimmung von Eisen(II) in Wasser wurde ein transparenter Testfilm entwickelt, der als Reagens Bathophenanthrolin, als Lösungsmittel Tributylphosphat und als Trägermaterial Polyvinylchlorid enthält. Nach Eintauchen in die Probelösung wird die Färbung des Films (die der Eisenkonzentration im Bereich von 0,1–5,6 ppm proportional ist) entweder visuell durch Vergleich mit einer Farbskala oder spektralphotometrisch bei 540 nm gemessen. Noch 0,1 ppm Eisen(II) kann erfaßt werden.

Summary

A transparent test film for rapid and semi-quantitative determination of small amounts of ferrous ion in water was prepared. The film is composed of bathophenanthroline, tributyl phosphate and polyvinyl chloride as colour reagent, solvent, and supporting material, respectively. The test film is coloured by immersing into the sample solution, and the colour intensity of the film (proportional to the ferrous concentration in the 0.1 ∼ 5.6 ppm range) is compared visually with a colour scale or measured spectrophotometrically at 540 nm. 0.1 ppm of ferrous ion can be detected.

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Tanaka, T., Hiiro, K. & Kawahara, A. Polyvinyl chloride film impregnated with bathophenanthroline for rapid colorimetric determination of ferrous ion in water. Z. Anal. Chem. 275, 15–17 (1975). https://doi.org/10.1007/BF00432991

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  • DOI: https://doi.org/10.1007/BF00432991

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