Detection of Total Phenol in Green and Black Teas by Flow Injection System and Unmodified Screen Printed Electrode
Figure 3
Cyclic voltammograms obtained for 10 mM K3Fe(CN)6 in 1.0 M KNO3 (3) and in presence of 1 mM gallic acid (2). The lower register (1) refers to 1.0 mM gallic acid in 1.0 M KNO3. Scan rate = 50 mV s-1.
