Abstract
8-hydroxyquinoline-5-carbaldehyde-(benzotriazol-1′-acetyl)hydrazone 1 was synthesized and found to show sensitivity and selectivity to Mg2+. Compared to other metal ions, the fluorescence intensity of 1 increased 65-fold upon addition of Mg2+ with a low detection limit of 2.4 ppb in acetonitrile.
Acknowledgement
This work is supported by the National Natural Science Foundation of China (20975046, 81171337).