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. 2023 Sep 13;62(50):20699–20709. doi: 10.1021/acs.inorgchem.3c01983

Table 2. Complex Stability Constants (log K) of Selected Metal Ions and the Macropa Chelator (Determined at 25 °C; Ionic Strength of I = 0.1 M NaCl) Compared with the Literature-Known Data Obtained from Potentiometric Titration.

    log K
complex n this work literature
Pb-mcp 1.02 ± 0.01 18.5 ± 0.01 16.2337
La-mcp 0.86 ± 0.03 13.9 ± 0.19 14.9927
Eu-mcp 1.05 ± 0.02 13.0 ± 0.05 13.0127
Ba-mcp 1.17 ± 0.03 11.0 ± 0.10 11.1122
Lu-mcp 0.93 ± 0.07 7.3 ± 0.19 8.2527