Table 1.

Potential in the KCl solution in reference to the AgCl wire surface

C#1 / M	3.4	100	10− 1	10− 2
${\psi }_C^{\#2}$ / V	0.000 ± 0.000	−0.037 ± 0.001	−0.092 ± 0.000	−0.148 ± 0.001
C#1 / M	10− 3	10− 4	10− 5	0
${\psi }_C^{\#2}$ / V	−0.205 ± 0.002	−0.257 ± 0.001	−0.279 ± 0.003	−0.309 ± 0.001

^#1 KCl concentration

^#2 Average ± Standard deviation AgCl wire surface potential is 0V