Abstract
Diiodobromides of P-containing organic cations, 3-carboxypropyltriphenylphosphonium (I) and tetraphenylphosphonium(II), were identified and quantitatively determined by capillary electrophoresis using an unmodified fused-silica capillary. The procedure for the quantitative determination of I and II by capillary electrophoresis allowed the organophosphorus compounds to be determined in the concentration range from 0.20 to 6.0 mM (RSD≤1%). The spectrophotometric method based on the conversion of diiodobromides to the corresponding triiodides (ε290 = 4.6 × 104,ε367 = 2.5 × 104) and followed by the measurement of the intensity of the band of the triiodide ion charge-transfer (RSD≤2%) was proposed to determine iodohalides of P-containing cations.
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Translated from Zhurnal Analiticheskoi Khimii, Vol. 60, No. 2, 2005, pp. 162–164.
Original Russian Text Copyright © 2005 by Chernov’yants, Lykova.
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Chernov’yants, M.S., Lykova, E.O. Electrophoretic and spectrophotometric determination of iodohalides of P-containing organic cations. J Anal Chem 60, 141–143 (2005). https://doi.org/10.1007/s10809-005-0042-9
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DOI: https://doi.org/10.1007/s10809-005-0042-9