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A gas chromatographic method for the microdetermination of iodine

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Summary

Iodine was quantitatively converted by reaction with acetone to a form which was easily separated by gas chromatography and which was easily detected with an electron capture detector. Linear response of the detector was obtained for solutions which contained up to 1μg/ml with an uncertainty of 8%. Milligram amounts of chloride or bromide andμg amounts of iodide do not interfere. Amplification of the amount of reaction product and the determination of both iodine and iodide was accomplished by the addition of KIO3.

Zusammenfassung

Jod wird quantitativ mit Aceton umgesetzt und läßt sich dann gaschromatographisch abtrennen und mit einem Elektroneneinfangdetektor nachweisen. Dessen Anzeige ist bis zu 1μg/ml linear mit einer Unsicherheit von 8%. Milligrammengen Chlorid oder Bromid bzw. Mikrogrammengen Jodid stören nicht. Die Menge Reaktionsprodukt läßt sich vervielfachen. Die Bestimmung von Jod und Jodid wird durch Zusatz von Kaliumjodat zu Ende geführt.

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Hasty, R.A. A gas chromatographic method for the microdetermination of iodine. Mikrochim Acta 59, 348–352 (1971). https://doi.org/10.1007/BF01219634

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  • DOI: https://doi.org/10.1007/BF01219634

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