Fig. 8

a Schematic illustration showing the preparation steps for MXene/rGO composite and its deposition on GCE for electrocatalytic sensing of CBZ drug. b CV profiles of the composite with CBZ (5.0 μM) in 0.1 M phosphate buffered Saline (PBS) (pH 7.0) in reference to bare GCE and other compositional competitors; c the corresponding relationship of peak current and natural log of scan rate d The variation of CV scans with different scan rate in the range of 10 to 400 mVs⁻¹ and. e DPV plots for CBZ at concentrations of 0.002, 0.007, 0.05, 0.07, 0.1, 0.3, 0.5, 0.7, 1.0, 3.0, 5.0, 7.0, 9.0 and 10.0 μM, respectively, with inset showing the corresponding linear fit calibration. Reprint with permission [85].