Microfluidic thin-layer flow cell for conducting polymer growth and electroanalysis

The microfluidic electrochemical cell incorporating the PANI-modified channel electrode was then used for the amperometric detection of ascorbic acid. When the working channel electrode was placed closest to the channel outlet, the microchip was capable of the detection of ascorbic acid at a sensitivity of 15.7 μA mM−1 cm−1 which is greater than reported previously under similar conditions.