Interpreting Diffusion Coefficients of Electrochemical Probes in Oil-in-Water Microemulsions

Raymond A. Mackay, Stephanie A. Myers, Anna Brajter-Toth

Research output: Contribution to journalArticlepeer-review

18 Scopus citations


The relationship between apparent diffusion coefficients, D′, of electroactive probe and the microstructure of an oil-in-water anionic microemulsion, sodium dodecyl sulfate (SDS)/dodecane/1-pentanol/0.1 M NaClaq has been investigated. Three probes, ferrocene (Fc), Fe(CN)3-6 and methyl viologen (MV2+) allowed the effect of different microstructure and interactions on the D′-values to be investigated. The results indicate that the droplet as well as bicontinuous microemulsion structures can be identified and point to the effects of cross-phase exchange, partitioning, and multiple binding on the D′-values.

Original languageEnglish (US)
Pages (from-to)759-764
Number of pages6
Issue number8-9
StatePublished - Jan 1 1996


  • Apparent diffusion coefficients
  • Electrochemical methods
  • Fe(CN)
  • Ferrocene
  • Methyl viologen
  • SDS/dodecane/1-pentanol/0.1 M NaCl anionic oil-in-water microemulsion
  • Structure determination

ASJC Scopus subject areas

  • Analytical Chemistry
  • Electrochemistry


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