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A novel quinazolinone compound containing quinazoline-fused moiety has been synthesized as fluorescence Off-On sensor QQ. The probe exhibited highly selective and sensitive recognition toward trivalent ferric ion (Fe3+) over other metal ions in HEPES buffer solution (10 mM, pH = 7.0, DMF-H2O, 9:1, v/v). The significant quenching in the fluorescence spectral(More)
An oxadiazole derivative(OXD) containing symmetrical pyridine-2-formamidophenyl-binded moiety was synthesised as fluorescence turn-on sensor OA1. Its ultraviolet–visible(UV–vis) and fluorescent spectra(FS) gave prominent fluorescence enhancement only for monovalent silver ion(Ag+) in HEPES buffer solution (10 mM, pH = 7.0, DMF-H2O, 9:1, v/v), which(More)
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