Figure 4

Calibration curve of the AP-MG sensor for quantification.
(a) The peak current of different concentrations of PTH was verified via CV. The concentration of PTH was measured over a range of concentrations at 100 mV/s. (b) Calibration plot considering the peak current at 0.55 V for the detection of PTH. The error bars represent the standard deviation of three measurements. The inset depicts the linear range from 1 to 50 pg/mL.