FLUORESCENT PROBE COMPOUNDS, PREPARATION METHOD AND APPLICATION THEREOF
申请人:Peng Xiaojun
公开号:US20120288947A1
公开(公告)日:2012-11-15
The present invention discloses a fluorescent probe compound which solved the problem of fluorescence quenching by Pd
2+
, and its preparation method and use as well. Excitation and emission wavelengths of the probe compound are in visible light region. The probe compound is highly sensitive and displays good selectivity for Pd
2
in near-neutral pH range. In detection of Pd
2
in 0-10 ppb level, fluorescence is evidently enhanced, and Pd
2
in the level as low as 5 nM can be detected. Fluorescence intensity is well linearly correlated to Pd
2
concentration. The probe compound can be used for detection of contaminating palladium and residual palladium in drug, soil, water sample and reactor.