Application of redox reactions in spectrophotometry-II Detection and spectrophotometric determination of phenolic compounds with the iron(III)/1,10-phenanthroline complex

To test the utility of the iron(III)/1,10-phenanthroline reagent system for the determination of organic compounds, its reaction with phenolic compounds has been characterized. By a redox reaction the reagent forms the chelate Fe(phen)(3)](2+), which is extractable as ion-association complexes. Determinations based on these complexes are very sensitive.