Figure 4.
Effect of pH (A) and the concentration of TB-Au-Fe3O4-rGO (B) on the electrochemical current responses of the immunosensor for the detection of 10.0 ng/mL of AFP. Error bar = RSD (n = 5).
Effect of pH (A) and the concentration of TB-Au-Fe3O4-rGO (B) on the electrochemical current responses of the immunosensor for the detection of 10.0 ng/mL of AFP. Error bar = RSD (n = 5).