Table 2.

Typical kinetic properties for As(III) oxidation at different pH using Au electrode.

Kinetic properties at different pH
pH	b (molL−1) × 105	ΔG0 (kJmol−1)	${\Gamma }_c$ (molcm−2) × 10−9
3.0	3.21 (±0.8)	−31.15 (±0.5)	1.58 (±1.3)
5.0	2.78 (±0.6)	−30.56 (±0.4)	1.43 (±1.2)
7.0	1.91 (±0.6)	−29.89 (±0.6)	1.53 (±0.8)
9.0	1.61 (±0.5)	−28.73 (±0.5)	0.92 (±0.7)