Selective determination of dopamine in presence of ascorbic acid and uric acid at hydroxy double salt/surfactant film modified carbon paste electrode

► The modified electrode HDS/SDS/CPE has shown good selectivity towards DA. ► The NiZn-OAc(HDS) used as a sensor because of good biocompatibility. ► The electrode shows high catalytic activity, low cost and high chemical stability. ► Electrode can be further applied for the investigation of other neurotransmitter.