Luminescent lanthanide complexes based on 4,5-di(3,5-dicarboxylphenoxy)phthalic acid as enhanced fluorescence probes for highly selective detection of lead (II) ions in water

Eu( iii ) and Tb( iii ) complexes with specific fluorescence-enhanced detection performance for Pb 2+ ions. The Eu( iii ) complex exhibits the lowest detection limit for Pb 2+ ions among the systems described.