A highly selective ratiometric fluorescent chemosensor for Cd~(2+) ions

摘要

A phenanthroxazole-based fluorescent sensor for Cd~(2+) has been developed. Of particular significance is the specific ratiometric response of the sensor toward Cd~(2+) without interference from other biologically important metal ions including Zn~(2+). The test paper made of this sensor exhibits both absorption and fluorescent color changes when exposed to Cd~(2+) aqueous solution.