Fig. 6From: A facile nano-iron oxide sensor for the electrochemical detection of the anti-diabetic drug linagliptin in the presence of glucose and metforminSWV of the successive additions of LG in B–R buffer and 10 mV/s. Inset a: The calibration curve of LG at CPE/Fe2O3NPs. Inset b: The dependence of Ep with log f for LG using Eq. (6)Back to article page