Rapidly Responsive and Highly Selective Fluorescent Probe for Bisulfite Detection in Food.
J Agric Food Chem
; 65(13): 2883-2887, 2017 Apr 05.
Article
em En
| MEDLINE
| ID: mdl-28300403
ABSTRACT
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.
Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Espectrometria de Fluorescência
/
Sulfitos
/
Contaminação de Alimentos
/
Corantes Fluorescentes
Tipo de estudo:
Diagnostic_studies
/
Evaluation_studies
Idioma:
En
Ano de publicação:
2017
Tipo de documento:
Article