Polypyrrole (PPy) film was synthesized by anodic polymerisation of pyrrole onto the surface of platinum electrode in the solution of sodium p-toluene sulfonate (NaTsO). When this film was oxidized anodically in an aqueous solution of ATP, the ATP anions were incorporated into the film. Release of ATP from the film could be accomplished by reduction of the film in aqueous electrolyte solution The total amount of ATP released from the film was determine by UV spectroscopic method.

Key words: ULTRAVIOLET SPECTROPHOTOMETRY, FILMS, PYRROLE, POLYPYRROLE, ADENOSINE TRIPHOSPHATE (ATP)