Improvement and characterization of surfactant-modified Prussian blue screen-printed carbon electrodes for selective H2O2 detection at low applied potentials

► Surfactant-modified electrodes displayed a higher surface concentration. ► The permeability and stability are improved in the surfactant-modified PB film. ► H2O2 sensitivity represents the highest values ever reported for SPCEs. ► Our sensors were more stable in media containing Na+ ions, even at neutral pH. ► This methodology provided a time-efficient method for producing stable PB films.