Chromaticity characteristics of iron (II, III) complexes with 1-nitroso-2-naphthol-3,6-disulfonic acid

Autor:	N. I. Ershova, A. M. Mamedova, V. M. Ivanov, Chin Thi Tuet Mai, V. N. Figurovskaya
Rok vydání:	2006
Předmět:	chemistry.chemical_compound Hydroxylamine medicine.diagnostic_test chemistry Oxidation state Spectrophotometry Inorganic chemistry medicine 1 nitroso 2 naphthol Chromaticity Absorption (electromagnetic radiation) Ascorbic acid Analytical Chemistry
Zdroj:	Journal of Analytical Chemistry. 61:859-864
ISSN:	1608-3199 1061-9348
DOI:	10.1134/s1061934806090048
Popis:	Optimal conditions for the complexation of iron(II, III) with 1-nitroso-2-naphthol-3,6-disulfonic acid in two buffer solutions and the reduction of iron(III) with ascorbic acid or hydroxylamine were found by spectrophotometry and chromaticity measurements. Chemical analytical and chromaticity characteristics of complexes in solutions were determined. It was shown that two complexes formed depending on the oxidation state of iron. Molar coefficients of the chromaticity functions were 20 to 30 times higher than molar absorption coefficients. The complexes exhibited abnormal light absorption maxima (710–720 nm) among the known 1-nitroso-2-naphthol-3,6-disulfonates and were chemically inert, which offers promise for analytical purposes.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::6cffa37991f3502a503aef817b3b41f7 https://doi.org/10.1134/s1061934806090048 Zobrazit plný text záznamu Plný text ve formátu PDF