A new fluorescent enhanced probe based on (E)-9-(2-nitrovinyl)-anthracene for the detection of bisulfite anions and its practical application

• A new fluorescent probe based on (E)-9-(2-nitrovinyl)-anthracene was developed for bisulfite anion detection.
• It exhibits good selectivity, sensitivity and a low detection limit.
• The proposed mechanism of this probe was being reviewed.
• The probe was successfully applied to the detection of bisulfite in sugar samples.

A new fluorescent enhanced probe based on (E)-9-(2-nitrovinyl)-anthracene is developed, which shows high selectivity and sensitivity for the detection of bisulfite anions at Na2HPO4 citric acid buffer solutions (pH 5.0). When addition of HSO3−, the fluorescence intensity is significantly enhanced and the probe displays apparent fluorescence color changes from non-fluorescence to blue under a UV lamp illumination, the solution color also changes from yellow to colorless. The detection limit is determined to be as low as 6.30 μM. This offers another specific colorimetric and fluorescent probe for bisulfite anions detection, furthermore it is applied in detecting the level of bisulfite in sugar samples.

A new turn-on fluorescent probe based on (E)-9-(2-nitrovinyl)-anthracene was developed for detection of bisulfite anions in this paper. When addition of HSO3−, the fluorescence intensity was significantly enhanced and the probe displayed apparent fluorescence color changes from non-fluorescence to blue under a UV lamp illumination, the solution color also changed from yellow to colorless. It exhibits good selectivity, sensitivity and a low detection limit.Figure optionsDownload as PowerPoint slide