Rapidly Responsive and Highly Selective Fluorescent Probe for Bisulfite Detection in Food

The new fluorescent probe 4-hydroxy-3-((2E,4E)-5-phenylpenta-2,4-dienoyl)-2H-chromen-2-one (probe 1) was designed and synthesized for selective detection of sulfite. The fluorescence intensity of the probe was decreased only in the presence of HSO3 –; all other anions assessed resulted in an increas...

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Bibliographic Details
Published in:Journal of agricultural and food chemistry 2017-04, Vol.65 (13), p.2883-2887
Main Authors: Wang, Jialin, Hao, Yanfeng, Wang, Hao, Yang, Shaoxiang, Tian, Hongyu, Sun, Baoguo, Liu, Yongguo
Format: Article
Language:English
Subjects:
Fluorescence
Fluorescent Dyes - chemistry
Food Contamination - analysis
Mass Spectrometry
Molecular Structure
Sensitivity and Specificity
Spectrometry, Fluorescence - methods
Sulfites - analysis
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Summary:The new fluorescent probe 4-hydroxy-3-((2E,4E)-5-phenylpenta-2,4-dienoyl)-2H-chromen-2-one (probe 1) was designed and synthesized for selective detection of sulfite. The fluorescence intensity of the probe was decreased only in the presence of HSO3 –; all other anions assessed resulted in an increased fluorescence response. Hence, probe 1 acts as a highly selective sensor for HSO3 –. This sulfite sensitivity can also be readily monitored visually, as once treated with sulfite the solution shows a marked color change from yellow to colorless. Moreover, probe 1 can be conveniently used as a signal tool to determine the HSO3 – levels in various sugar samples.
ISSN:0021-8561
1520-5118
DOI:10.1021/acs.jafc.7b00353