Abstract
The kinetics of the oxidation of N-methyldiphenylamine-4-sulfonic acid with periodate ions was studied in weakly acidic solutions in the presence of iridium(IV), rhodium(III), and their mixtures. Oxidation rate constants were determined in the presence of individual catalysts and their mixtures. The synergetic effect of iridium(IV) and rhodium(III) on the rate of the indicator reaction was estimated; the range of catalyst ratios for the simultaneous determination of analytes was determined. The effect of some factors (oxidant nature and concentration, temperature, the ionic strength of solution, and interfering ions) on the rate of the indicator reaction in the presence of iridium(IV) and rhodium(III) mixtures was assessed. A procedure for the differential catalytic determination of iridium(IV) and rhodium(III) was proposed and tested in the analysis of artificial mixtures and a platinum concentrate of complex composition (KP-5).
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References
Pancras, J.P. and Puri, B.K., Anal. Sci., 1999, vol. 15.
Wang, Y.H., Wang, H.Y., and Yu, W.H., Fenxi Huaxue, 1998, vol. 26, no. 10, p. 1234.
Malathi, K., Talanta, 1995, vol. 42, no. 10, p. 1487.
Balserzak, M. and Swiecicka, E., Anal. Chim. Acta, 1997, vol. 350, p. 53.
Mushtakova, S.P., Gumenyuk, A.P., and Aleshina, V.V., Zh. Anal. Khim., 1986, vol. 41, no. 8, p. 1400.
Mushtakova, S.P., Gumenyuk, A.P., Khmelev, S.S., and Batasheva, N.A., Zh. Anal. Khim., 1993, vol. 48, no. 7, p. 1218.
Mushtakova, S.P., Gumenyuk, A.P., Kozhina, L.F., and Shtykova, S.S., Zh. Anal. Khim., 1999, vol. 54, no. 7, p. 749 [J. Anal. Chem. (Engl. Transl.), vol. 54, no. 7, p. 662].
Huheey, J.E., Inorganic Chemistry: Principles of Structure and Reactivity, Cambridge: Harper, 1983. Translated under the title Neorganicheskaya khimiya. Stroenie veshchestva i reaktsionnaya spesobnost’, Moscow: Khimiya, 1987.
Aleksenko, S.S., Gumenyuk, A.P., Mushtakova, S.P., Kozhina, L.F., and Timerbaev, A.R., Talanta, 2003, vol. 61, no. 2, p. 195.
Karyakin, Yu.V. and Angelov, I.I., Chistye khimicheskie veshchestva (Pure Chemical Substances), Moscow: Khimiya, 1974.
Pilipenko, A.T., Sereda, I.P., and Maslei, N.N., Assortiment reaktivov na iridii (Reagents for Iridium), Moscow: NIITEKhIM, 1970.
Syrokomskii, V.S., Zh. Anal. Khim., 1947, vol. 2, no. 5, p. 247.
Perez-Bendito, D. and Silka, M., Kinetic Methods in Analytical Chemistry, New York: Ellis Horwood, 1988. Translated under the title Kineticheskie metody v analiticheskoi khimii, Moscow: Mir, 1991.
Yatsimirskii, K.B. and Raizman, L.P., Zh. Anal. Khim., 1963, vol. 28, p. 29.
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Original Russian Text © E.V. Kapustina, N.A. Burmistrova, S.P. Mushtakova, 2006, published in Zhurnal Analiticheskoi Khimii, 2006, Vol. 61, No. 3, pp. 305–309.
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Kapustina, E.V., Burmistrova, N.A. & Mushtakova, S.P. Differential catalytic determination of iridium(IV) and rhodium(III) based on the oxidation of N-methyldiphenylamine-4-sulfonic acid. J Anal Chem 61, 284–288 (2006). https://doi.org/10.1134/S1061934806030166
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DOI: https://doi.org/10.1134/S1061934806030166