Table 3.

Complex formation constants of DFO complexes with Fe³⁺, Al³⁺, Ga³⁺, In³⁺, Cu²⁺, Ni²⁺, and Zn²⁺ and the related pM values. Charges are omitted for simplicity.

Metal Ion	[MLH3]	[MLH2]	[MLH]	[ML]	[M2LH]	pM	Ref.
Fe3+		42.4	41.01	30.4		26.5	[15]
Al3+		36.6	33.8	23.9		19.3	[22]
Ga3+			36.92	27.56		22.4	[23]
In3+		36.40	32.48	22.18		18.0	[17]
Cu2+	36.99	33.10	23.98	13.73	32.09	11.2	[24]
Ni2+	33.20	27.66	19.71	8.89		6.3	[18]
Zn2+	33.40	28.17	20.40	10.36		6.6	[18]