Research Article
Fabrication of an Amperometric Flow-Injection Microfluidic Biosensor Based on Laccase for In Situ Determination of Phenolic Compounds
Figure 6
Current-time response curve with background signal subtracted (a) and calibration curve (b) of the microfluidic biosensor. Increasing concentrations of syringaldazine (from 10 μm to 200 μM) in 0.1 M acetate buffer (pH 4.5) : ethanol 1 : 1 (v/v) solution were injected at 200 μL min−1. Potential applied of 0.4 V at room temperature. Error bars describe the standard deviation of the three replicates.
| (a) |
| (b) |