caa a22 4500 463220161 CHVBK 20180405153209.0 cr unu---uuuuu 170326e20070801xx s 000 0 eng 10.1134/S1061934807080096 doi (NATIONALLICENCE)springer-10.1134/S1061934807080096 Stability of ascorbic acid in aqueous and aqueous-organic solutions for quantitative determination [Elektronische Daten] [G. Golubitskii, E. Budko, E. Basova, A. Kostarnoi, V. Ivanov] The stability of ascorbic acid is studied in dependence on the pH of its aqueous solution. It is shown that itenhances in acidic and weakly alkaline media and upon the addition of acetonitrile. The stabilizing effect of ethanol is considerably lower. Processes occurring in aqueous and aqueous-organic solutions of ascorbic acid are considered and the results obtained are explained. These data are important for the development of analytical procedures and can be used in the chemical and pharmaceutical industries for improving the stability of preparations containing ascorbic acid. Pleiades Publishing, Ltd., 2007 Golubitskii G. OAO Pharmstandard-Leksredstva, Vtoraya Agregatnaya ul. 1a/18, 305039, Kursk, Russia aut Budko E. Kursk State Medical University, ul. K. Marksa 3, 305004, Kursk, Russia aut Basova E. Dubna International University of Nature, Society, and Human Being, Universitetskaya ul. 19, 141980, Dubna, Moscow oblast, Russia aut Kostarnoi A. OAO Pharmstandard-Leksredstva, Vtoraya Agregatnaya ul. 1a/18, 305039, Kursk, Russia aut Ivanov V. Department of Chemistry, Moscow State University, 119992, Vorob'evy gory, Moscow, Russia aut Journal of Analytical Chemistry Nauka/Interperiodica 62/8(2007-08-01), 742-747 1061-9348 62:8<742 2007 62 10809 https://doi.org/10.1134/S1061934807080096 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1134/S1061934807080096 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Golubitskii G. OAO Pharmstandard-Leksredstva, Vtoraya Agregatnaya ul. 1a/18, 305039, Kursk, Russia aut NATIONALLICENCE 700 1- Budko E. Kursk State Medical University, ul. K. Marksa 3, 305004, Kursk, Russia aut NATIONALLICENCE 700 1- Basova E. Dubna International University of Nature, Society, and Human Being, Universitetskaya ul. 19, 141980, Dubna, Moscow oblast, Russia aut NATIONALLICENCE 700 1- Kostarnoi A. OAO Pharmstandard-Leksredstva, Vtoraya Agregatnaya ul. 1a/18, 305039, Kursk, Russia aut NATIONALLICENCE 700 1- Ivanov V. Department of Chemistry, Moscow State University, 119992, Vorob'evy gory, Moscow, Russia aut NATIONALLICENCE 773 0- Journal of Analytical Chemistry Nauka/Interperiodica 62/8(2007-08-01), 742-747 1061-9348 62:8<742 2007 62 10809 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer