FLUORESCENT PROBE COMPOUNDS, PREPARATION METHOD AND APPLICATION THEREOF

摘要

Fluorescent probe compounds, preparation method and use thereof are disclosed, which well solve the difficult problem that palladium ions quench fluorescence. The compounds have activizing and emissive wavelengths within visible light region, good sensitivity, and good selectivity for palladium ion when pH is near neutral. The fluorescence is obviously enhanced when detecting the palladium ion concentration of 0-10 ppb, and the fluorescent probe can detect the palladium ions of 5nM at lowest. The palladium ion concentration and fluorescence intensity are in good linear relation. The fluorescent probe compounds can be used for detecting Pd pollution and residue in drug, soil, water sample, and catalytic reactor.