Determination of Different Saccharides Concentration by Means of a Multienzymes Amperometric Biosensor

Figure 2

Sensitivity of different electrodes using lactose as substrate; (a) the electrodes were prepared with fixed GOD concentration (2 mg/ml) and varying β-gal concentrations; (b) the electrodes were prepared with fixed β-gal concentration (6 mg/ml) and varying GOD concentrations, [lactose] = 0.5 mM and pH = 6.5.

(a)

(b)