Voltammetric Detection of Phosphate Ion Binding to β-Amino-Cyclodextrin

Luis A. Godínez, James Lin, Marc Muñoz, Anthony W. Coleman, Angel E. Kaifer

Research output: Contribution to journalArticlepeer-review

12 Scopus citations


The complexation of phosphate ion by β-amino-cyclodextrin (host 1) was detected by voltammetric methods through the competitive displacement of water-soluble ferrocene derivatives from their complexes with host 1 in neutral aqueous media. The half-wave potential and the anodic peak current for oxidation of the ferrocene derivative were found to be sensitive to the phosphate concentration throughout a range which is determined, among other factors, by the concentration of host 1 and the binding constant between the selected ferrocene derivative and the β-amino-cyclodextrin host.

Original languageEnglish (US)
Pages (from-to)1072-1074
Number of pages3
Issue number11
StatePublished - Nov 1996


  • Cyclodextrin
  • Molecular recognition
  • Phosphate

ASJC Scopus subject areas

  • Analytical Chemistry


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