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1-pentyl 4,6-dihydroxy-5-nitrosopyridine-3-carboxylate: A new reagent for the determination of osmium

Microchimica Acta volume 67, pages 319–323 (1977)Cite this article

Summary

The reagent 1-pentyl 4,6-dihydroxy-5-nitrosopyridine-3-carboxy-late has been used to photometrically determine osmium. Several interferences are eliminated by an extraction prior to the development of the purple color formed between PDHNPC and osmium. This method is highly sensitive for osmium, the molar absorptivity for the complex being 3.4 × 104 at 550 nm. The reaction ratio is 1∶1 reagent to osmium.

Zusammenfassung

Für die photometrische Bestimmung von Osmium wurde 4,6-Dihydroxy-5-nitrosopyridin-3-carboxylsäureamylester (PDHNPC) als Reagens verwendet. Verschiedene Störungsursachen lassen sich durch Extraktion vor der Entwicklung der Rotfärbung mit PDHNPC und Osmium beseitigen. Das Verfahren ist sehr empfindlich, die molare Extinktion für den roten Komplex beträgt 3,4 × 104 bei 550 nm. Das Reagens wird mit Os im Verhältnis 1∶1 umgesetzt.

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Authors and Affiliations

  1. Department of Chemistry, University of Southern Mississippi, 39401, Hattiesburg, MS, USA

    Roy R. Reeves, Howard P. Williams & John H. Bedenbaugh

Authors
  1. Roy R. Reeves
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  2. Howard P. Williams
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  3. John H. Bedenbaugh
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Reeves, R.R., Williams, H.P. & Bedenbaugh, J.H. 1-pentyl 4,6-dihydroxy-5-nitrosopyridine-3-carboxylate: A new reagent for the determination of osmium. Mikrochim Acta 67, 319–323 (1977). https://doi.org/10.1007/BF01213042

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  • DOI: https://doi.org/10.1007/BF01213042

Keywords

  • Color
  • Physical Chemistry
  • Analytical Chemistry
  • Inorganic Chemistry
  • Osmium