Research Article

Electrochemically Pretreated Carbon Microfiber Electrodes as Sensitive HPLC-EC Detectors

Figure 2

Calibration curves for gallic (a) and caffeic acid (b) on pretreated and native carbon fiber electrodes. Inset: actual amperometric response curves determined in stirred mobile phase. Applied potential: 1200 mV (versus Ag/AgCl).
295802.fig.002a
(a)
295802.fig.002b
(b)