A catalyst don’t appear in the overall stoichiometry of the reaction it catalyzes, but it must appear in at least one of the elementary reactions in the mechanism for the catalyzed reaction. 2043-57-4, Name is 1,1,1,2,2,3,3,4,4,5,5,6,6-Tridecafluoro-8-iodooctane, molecular formula is C8H4F13I. In an article, author is Fukushi, K,once mentioned of 2043-57-4, SDS of cas: 2043-57-4.
Simultaneous determination of bromide and iodide ions by capillary isotachophoresis using quaternary ammonium salts
Bromide and iodide ions were determined simultaneously by capillary isotachophoresis using an aqueous electrolyte system; the separation principle was based on the ion-pairing equilibria between tetradecyldimethylbenzylammonium ion and these anions in the leading electrolyte. The interaction between iodide ion and tetradecyldimethylbenzylammonium ion was stronger than that for bromide ion. Thus complete separation of bromide and iodide ions could be obtained by using a leading electrolyte containing 1.5 mM tetradecyldimethylbenzylammonium ion. The pH of the leading electrolyte was adjusted to 5.0. The relative standard deviations of the zone length for bromide and iodide ions were 1.1 and 1.2%, respectively, when mixture of 3.0 mM of these ions was analysed. A 150-mu l volume could be injected for the simultaneous determination of low concentrations of bromide and iodide ions.
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