ПРИМЕНЕНИЕ ОКИСЛЕНИЯ МЕТИЛОРАНЖА В ПРИСУТСТВИИ ГИДРАЗИНА К КИНЕТИЧЕСКОМУ ОПРЕДЕЛЕНИЮ ПЕРИОДАТ-ИОНА
Аннотация
Возможно применение индукционного периода реакции Ландольта метилоранжа с броматом калия в присутствии гидразина к определению периодат-иона. Оптимальные условия: HCl 0,03 М, метилоранж 10 мкг/мл, KBrO3 1,6∙10–4 М, N2H4 3∙10–5 M. Градуировочный график линеен в диапазоне (0,06–0,9) мкг/мл периодат-иона, погрешность сходимости 2,6 %, относительная погрешность 4,6 %.
Ключевые слова
Полный текст:
PDF (English)Литература
Hou X., Dahlgaard H., Rietz B. Jacobsen U., Nielsen S.P., Aarkrog A. Determination of Chemical Species of Iodine in Seawater by Radiochemical Neutron Activation Analysis Combined with Ion-Exchange Preparation. Anal. Chem., 1999, vol. 71, no. 14, pp. 2745–2750.
Crompton T.R. Analysis of Seawater. A Guide for the Analytical and Environmental Chemist. Berlin Heidelberg, Springer-Verlag, 2006. 510 p.
Afkami A., Madrakian T., Zarei A.R. Spectrophotometric Determination of Periodate, Iodate and Bromate Mixtures Based on Their Reaction with Iodide. Anal. Sci., 2001, vol. 17, no. 10, pp. 1199–2002.
Ensafi A., Dehaghi G.B. Flow-Injection Simultaneous Determination of Iodate and Periodate by Spectrophotometric and Spectrofluorometric Detection. Anal. Sci., 2000, vol. 16, no. 1, pp. 61–64.
Ni Y., Wang Y. Application of Chemometric Methods to the Simultaneous Kinetic Spectrophotometric Determination of Iodate and Periodate Based on Consecutive Reactions. Microchem. J., 2007, vol. 86, no. 2, pp. 216–226.
Afkhami A., Zarei A.R. Simultaneous Kinetic-Spectrophotometric Determination of Periodate-Bromate and Iodate-Bromate Mixtures using the H-point Standard Addition Method. Talanta, 2003, vol. 60, no. 1, pp. 63–71.
Benvidi A., Heidari F., Tabaraki R., Mazloum-Ardakani M. Simultaneous Determination of
Iodate and Periodate by Kinetic Spectrophotometric Method Using Principal Component Artificial
Neural Network. Zhurnal Analiticheskoy Khimii [Journal of Analytical Сhemistry], 2012, vol. 67, no. 7, pp. 661–668.
Afkhami A., Mosaed F. Sensitive Kinetic-Spectrophotometric Determination of Iodate in Iodized Table Salt Based on Its Accelerating Effect on the Reaction of Bromate with Chloride Ion in the Presence of Hydrazine. Anal. Sci., 2002, vol. 18, no. 6, pp. 667–670.
Afkhami A., Mosaed F. Sensitive Kinetic-Spectrophotometric Determination of Trace Amounts of Periodate Ion [Kineticheskyi metod opredeleniya microkolichestv periodat-iona]. Zhurnal Analiticheskoy Khimii [Journal of Analytical Chemistry], 2003, vol. 58, no. 6, pp. 588–593.
Danilina E.I., Agliullina L.T. Optimization of Kinetic Determination of Iodate by MethylOrange Oxidation in the Presence of Hydrazine. Bulletin of the South Ural State University. Ser. Chemistry, 2014, vol. 6, no. 2, pp. 30–37.
Ссылки
- На текущий момент ссылки отсутствуют.