Chelating agents related to ethylenediamine bis(2-hydroxyphenyl)acetic acid (EDDHA): Synthesis, characterization, and equilibrium studies of the free ligands and their Mg2+, Ca2+, Cu2+, Fe 3+ chelates

1. Yunta, F.
2. García-Marco, S.
3. Lucena, J.J.
4. Gómez-Gallego, M.
5. Alcázar, R.
6. Sierra, M.A.