Cyclic Voltammetric Investigations of Dopamine at Poly(Losartan) Modified Carbon Paste Electrode

The poly (losartan) film was prepared on the surface of carbon paste electrode by electrochemical method using cyclic voltammetric technique. The poly(losartan) film modified carbon paste electrode was calibrated with standard potassium ferrocyanide solution in 1 M KCl as supporting electrolyte. The prepared poly(losartan) film coated electrode exhibits excellent electrocatalytic activity towards the detection of dopamine at neutral pH. The effect of scan rate, concentration and pH was studied. The overall process was found to be diffusion-controlled.