Fig. 4

Effect of pH on potential response of the sensor (IV) (a): 1 × 10− 5 mol L− 1 Al (III) and (b): 1 × 10− 3 mol L− 1 Al (III).

Effect of pH on potential response of the sensor (IV) (a): 1 × 10− 5 mol L− 1 Al (III) and (b): 1 × 10− 3 mol L− 1 Al (III).