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Ratiometric fluorescent probe for rapid detection of bisulfite through 1,4-addition reaction in aqueous solution.
- Source :
-
Journal of agricultural and food chemistry [J Agric Food Chem] 2014 Apr 16; Vol. 62 (15), pp. 3405-9. Date of Electronic Publication: 2014 Apr 03. - Publication Year :
- 2014
-
Abstract
- A ratiometric fluorescent probe based on a positively charged benzo[e]indolium moiety for bisulfite is reported. The bisulfite underwent a 1,4-addition reaction with the C-4 atom in the ethylene group. This reaction resulted in a large emission wavelength shift (Δλ = 106 nm) and an observable fluorescent color change from orange to cyan. The reaction could be completed in 90 s in a PBS buffer solution and displayed high selectivity and sensitivity for bisulfite. A simple paper test strip system was developed to detect bisulfite rapidly. Probe 1 was used to detect bisulfite in real samples with good recovery.
Details
- Language :
- English
- ISSN :
- 1520-5118
- Volume :
- 62
- Issue :
- 15
- Database :
- MEDLINE
- Journal :
- Journal of agricultural and food chemistry
- Publication Type :
- Academic Journal
- Accession number :
- 24665857
- Full Text :
- https://doi.org/10.1021/jf5004539