Fig. 4From: A facile nano-iron oxide sensor for the electrochemical detection of the anti-diabetic drug linagliptin in the presence of glucose and metforminEffect of varying the scan rate on 1.0 mM LG at CPE/Fe2O3NPs in B–R buffer pH 7.4 using cyclic voltammetry. Inset a: Plot peak current versus square root of scan rate. Inset b: Plot of log peak current versus log the scan rate. Inset c: Plot of peak potential versus log the scan rateBack to article page