Flow Injection Analysis of Benzoyl Peroxide Using N,N,N,N-Tetramethyl-p-phenylenediamine (TMPDA) and Surfactants

Abstract

The flow injection analysis of benzoyl peroxide using N,N,N,N-tetramethyl-p-phenylenediamine (TMPDA, also known as Wurster's reagent) and a solvent system including the surfactant sodium dodecyl sulfate (SDS) and cerium(IV) as a catalyst at pH 6.0 at 612 nm was investigated. The method was applied to the analysis of acne cream and flour. The study included a 26-metal-ion search for other possible methods of catalysis and a buffer study of SDS and cetyltrimethyl ammonium bromide (CTAB).

Keywords:

• Benzoyl peroxide
• flow injection analysis (FIA)
• N,N,N,N-tetra-methyl-p-phenylenediamine
• sodium dodecyl sulfate (SDS)
• surfactants
• Wurster's reagent

We acknowledge the VMI Chemistry Department's Summer Research Program for its support of this work.