A Highly Sensitive and Selective Fluorescent Sensor for Detection of Al3+ Using a Europium(III) Quinolinecarboxylate

Eu(2)PQC(6) has been developed to detect Al3+ by monitoring the quenching of the europium-based emission, with the lowest detection limit of similar to 32 pM and the quantitative detection range to 150 mu M. Eu(2)PQC(6) is the first ever example that the europium(III) complex serves as an Al3+ fluorescent sensor based on competition-displacement mode.