A highly sensitive and selective ratiometric Cd~(2+) fluorescent sensor for distinguishing Cd~(2+) from Zn~(2+) based on both fluorescence intensity and emission shift

摘要

A highly selective ratiometric fluorescent sensor for Cd~(2+) has been successfully prepared, which can distinguish Cd~(2+) from Zn~(2+) with both fluorescence intensity and emission shift. The detection limit is down to nanomolar range concentration in aqueous solution.