caa a22 4500 463219910 CHVBK 20180405153209.0 cr unu---uuuuu 170326e20070401xx s 000 0 eng 10.1134/S1061934807040053 doi (NATIONALLICENCE)springer-10.1134/S1061934807040053 Optical and chromaticity characteristics of cobalt 1-nitroso-2-naphthol-3,6-disulfonates [Elektronische Daten] [V. Ivanov, V. Figurovskaya, N. Ershova, A. Mamedova, Chin Mai] The optimum conditions of the complexation of cobalt with nitroso-R salt in the presence of and without ascorbic acid were found. Molar coefficients of chromaticity functions of the complexes were calculated, and it was demonstrated that cobalt(II) and cobalt(III) complexes can be distinguished only with the use of chromaticity functions, whereas their optical characteristics are nearly the same. For practical purposes, it is better to introduce ascorbic acid and to obtain the kinetically inert complex of cobalt(III) with nitroso-R salt. Pleiades Publishing, Ltd., 2007 Ivanov V. Department of Chemistry, Moscow State University, 119992, Vorob'evy gory, Moscow, Russia aut Figurovskaya V. Department of Chemistry, Moscow State University, 119992, Vorob'evy gory, Moscow, Russia aut Ershova N. Electronics, and Automation, Moscow Institute of Radioengineering, pr. Vernadskogo 78, 117454, Moscow, Russia aut Mamedova A. Department of Chemistry, Moscow State University, 119992, Vorob'evy gory, Moscow, Russia aut Mai Chin Department of Chemistry, Moscow State University, 119992, Vorob'evy gory, Moscow, Russia aut Journal of Analytical Chemistry Nauka/Interperiodica 62/4(2007-04-01), 325-329 1061-9348 62:4<325 2007 62 10809 https://doi.org/10.1134/S1061934807040053 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1134/S1061934807040053 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Ivanov V. Department of Chemistry, Moscow State University, 119992, Vorob'evy gory, Moscow, Russia aut NATIONALLICENCE 700 1- Figurovskaya V. Department of Chemistry, Moscow State University, 119992, Vorob'evy gory, Moscow, Russia aut NATIONALLICENCE 700 1- Ershova N. Electronics, and Automation, Moscow Institute of Radioengineering, pr. Vernadskogo 78, 117454, Moscow, Russia aut NATIONALLICENCE 700 1- Mamedova A. Department of Chemistry, Moscow State University, 119992, Vorob'evy gory, Moscow, Russia aut NATIONALLICENCE 700 1- Mai Chin Department of Chemistry, Moscow State University, 119992, Vorob'evy gory, Moscow, Russia aut NATIONALLICENCE 773 0- Journal of Analytical Chemistry Nauka/Interperiodica 62/4(2007-04-01), 325-329 1061-9348 62:4<325 2007 62 10809 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer