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Abstract
A dual-function fluorescent probe (Probe 1) was developed for discriminative detection of Hg2+ and N2 H4 . Probe 1 could discriminatively detect Hg2+ and N2 H4 through two different reaction sites, with the mechanism for Probe 1 for Hg2+ depending on a desulfurization reaction and for N2 H4 depending on the Schiff-base reaction. N2 H4 had minimal effect on Hg2+ detection in dimethyl sulfoxide (DMSO)/H2 O solution, but Hg2+ could interfere with N2 H4 detection in DMSO/buffer solution. Different concentrations of Hg2+ and N2 H4 resulted in different blue shades of Probe 1 test strips, and the shade of blue was different with the same concentration of Hg2+ or N2 H4 , as observed under ultraviolet light at 365 nm wavelength.
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