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ABSTRACT
Two types of macroacyclic ligands were synthesized by reacting 8-hydroxyquinoline-7-carbaldehyde with o-phenylenediamine (8H-OPD) and 4,4ʹ-diaminobenzanilide (8 H-DAB) and were characterized by certain spectroscopic techniques. The efficiency of the synthesized ligands toward the effective extraction of toxic metal ions such as Cu2+, Pb2+ and Ag+ from aqueous to organic phase was studied in two different types of organic solvents, viz., chloroform and dichloromethane. The effect of pH, solvents, concentration of ligands on the abstraction of metal ions, temperature, extraction time and the solvent ratio was investigated using an atomic absorption spectrophotometer. It has been observed that Ag+ ions have greater selectivity than other two metal ions and also the extraction efficiency was greater at 298 K.