Catalase-Based Modified Graphite Electrode for Hydrogen Peroxide Detection in Different Beverages

Table 1

Electroactive area and heterogeneous standard rate constant of bare sensor and after modification steps.

Sensor	/mm^2	/cm s^−1
Bare-GCE	4.89	9.3
NAF-GCE	2.16	6.5
NAF-MWCNTs-COOH-GCE	16.42	13.5