Bio-polymer starch thin film sensors for low concentration detection
of cyanide anions in water
abstract
Starch films containing a chemodosimeter probe based on a quinolinium merocyanine dye were
successfully prepared and studied. Through the selective nucleophilic addition reaction between cyanide
anions and the dye chromophore the film can selectively detect sub-micromolar quantities of cyanide ion
by a distinct color change.