A novel fluorescence probe for the recognition of Cd2+and its application

A facile fluorescence probe BQBH was synthesized and investigated on its spectrum property. The result showed that the BQBH had high sensitivity and selectivity for Cd2+ with lowest detection determined as 0.14 & mu;M by fluorescence response. The 1: 1 binding ratio between BQBH and Cd2+ was determined by Job's plot, and the binding details were further confirmed by 1H NMR titration, FT-IR spectrum and HRMS analysis. The applications including on test paper, smart phone and cell image were all also investigated.

Automated summary

A facile fluorescence probe BQBH was synthesized and investigated on its spectrum property. The BQBH showed high sensitivity and selectivity for Cd2+ with the lowest detection of 0.14 μM. The 1:1 binding ratio between BQBH and Cd2+ was confirmed by various analyses, and its applications in test paper, smart phone, and cell image were also studied.