Medium

Ion

Peak potential (V)

Peak height (mm)

Peak shape

1.0 M Borate buffer (pH = 9.5)

1 × 10⁻⁵ M Co³⁺

−1.43

11 ± 1

Broad

1.0 M Phosphate buffer (pH = 9.6)

1 × 10⁻⁵ M Co³⁺

−1.64

11 ± 1

Broad

1.0 M HAc/Ac⁻ buffer (pH = 4.0)

1 × 10⁻⁵ M Co³⁺

−1.35

33 ± 1

Broad

1.0 M NH₃/NH₄Cl buffer (pH = 9.8)

1 × 10⁻⁵ M Co³⁺

−1.28

32 ± 1

Sharp