Figure 3 | Scientific Reports

Figure 3

From: A sensitive electrochemical sensor for in vitro detection of parathyroid hormone based on a MoS2-graphene composite

Figure 3

Cyclic voltammograms for (a) AP-GO, and (b) AP-MG sensors, following treatment with sandwich ELISA for 10 pg/mL, 100 pg/mL and 1 ng/mL PTH concentrations. The sensor was immersed in a 1 mM AAP solution at a scan rate of 100 mV/s. (c) Comparison of PTH concentration based on the oxidation peaks of the AP-MG and AP-GO sensors. (d) Electrochemical impedance spectra obtained using AP-GO and AP-MG sensors, at different PTH concentrations, using ALP in 1 mM AAP.

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