Abstract
Abstract The role of micellar media in analytical reaction-rate methods is discussed. The Ce(IV)As(III) reaction in the presence and absence of iodide catalyst was selected in order to study its behaviour in the presence of surfactants. Dodecyltrimethylammonium bromide (DTAB) was found to increase the reaction rate of both systems. Evidence for a “micellar catalysis” effect by DTAB is demonstrated. The analytical potential of micelles in terms of sensitivity and enhanced selectivity is also discussed.
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