NADH Oxidation onto Different Carbon-Based Sensors: Effect of Structure and Surface-Oxygenated Groups

Table 2

Parameters extracted from the calibration curve.

Material	Slope × 10^−4; (μA·cm^2/μmol·L^−1)	R^2	LOD; (μmol·L^−1)	LOQ; (μmol·L^−1)
GCE	9.20	0.9957	6.2	31
O-GCE	3.05	0.9660	5.4	27
GCE/CB	11.1	0.9993	3.2	16
GCE/MWCNT	2.22	0.9960	9.6	47.5
GCE/O-MWCNT	6.73	0.9963	4.9	24.5

LOD = blank signal + 3 standard deviation of blank signal. LOQ = blank signal + 5standard deviation of blank signal.