Figure 3.

Pulsed chronopotentiometric potential response of polyion sensor upon alternating measurement in a background solution and 100 µg/ml of protamine and the various oligopeptides (see Table 1 for the amino acid sequences). The potential was sampled as averaged value toward the end of the second (zero-current) measurement pulse. Each discrete portion in the curve is composed of 16 data points (see Figure 1).