Influence of sodium dodecyl sulfate micelles on the kinetics of complex formation between Pd(H2O)(4)(2+) and glutathione
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The kinetics of the complex formation between Pd(H2O)(4)(2+) and glutathione was investigated in the presence of sodium dodecyl sulfate in the acidity range from 2 M HClO4 to pH 5. Acceleration (from 2 M HClO4 to pH 3.5) and retardation (3.5 LT pH LT 5) of the complex formation in the presence of anionic micelles was observed compared with the kinetic data in aqueous solution. These effects were explained by the electrostatic interaction of the reacting species with negatively charged micellar surface and their effective concentration and/or separation in the vicinity of micellar surface. Copyright (C) 1997 Elsevier Science Ltd.