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Highly Sensitive and Rapid Fluorescence Detection with a Portable FRET Analyzer
Published on: October 1, 2016
A FRET based ratiometric fluorescent probe for detection of sulfite in food
Gongxiao Zhang1, Ruixue Ji1, Xiangyu Kong1
1School of Chemistry and Pharmaceutical Engineering, Taishan Medical University Taian Shandong 271016 P. R. China geyanqing2016@126.com +86-538-6229741 +86-538-6229741.
Abstract:
A new fluorophore pyrido[1,2-a]benzimidazole based ratiometric fluorescent probe for the selective detection of sulfite ions in water was investigated. It shows large (pseudo) Stokes shifts (260 nm), high FRET efficiency, high selectivity and sensitivity. A distinct color change from red to colorless was observed and importantly, it proves to be a convenient and efficient tool to detect the sulfite levels in sugar samples.

