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A sensitive and selective reaction for nitrate — Application in thin-layer chromatography

Eine empfindliche und selektive Reaktion für Nitrat und deren Anwendung zur Dünnschicht-Chromatographie

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Summary

The conversion of nitrate into nitrosyl chloride, and subsequent reaction with 8-hydroxyquinoline andp-aminobenzene sulphonic acid allows the rapid detection of down to 5 ng of nitrate in a spot-test procedure. Over 55 anions and cations have been shown not to interfere if detection is preceded by thin-layer chromatography on silica. The method can be used for the determination of nitrate in food and water samples.

Zusammenfassung

Die Umsetzung von Nitrat in Nitrosylchlorid und die nachfolgende Reaktion mit 8-Hydroxychinolin undp-Aminobenzolsulfonsäure ermöglicht den raschen Nachweis bis zu5 ng Nitrat im Wege einer Tüpfelprobe. Über55 Anionen und Kationen stören diesen Nachweis nicht, wenn vorher eine Dünnschicht-Chromatographie auf Kieselgel durchgeführt wird. Das Verfahren kann für die Bestimmung von Nitrat in Lebensmitteln und Wasser verwendet werden.

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Authors and Affiliations

  1. Department of Analytical Chemistry, Free University, Amsterdam, The Netherlands

    G. de Vries & U. A. Th. Brinkman

Authors
  1. G. de Vries
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  2. U. A. Th. Brinkman
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de Vries, G., Brinkman, U.A.T. A sensitive and selective reaction for nitrate — Application in thin-layer chromatography. Mikrochim Acta 83, 47–52 (1984). https://doi.org/10.1007/BF01237259

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  • DOI: https://doi.org/10.1007/BF01237259

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