A New pH-Dependent Macrocyclic Rhodamine B-Based Fluorescent Probe for Copper Detection in White Wine.
Fiche publication
Date publication
octobre 2019
Journal
Sensors (Basel, Switzerland)
Auteurs
Membres identifiés du Cancéropôle Est :
Pr DENAT Franck
Tous les auteurs :
Doumani N, Bou-Maroun E, Maalouly J, Tueni M, Dubois A, Bernhard C, Denat F, Cayot P, Sok N
Lien Pubmed
Résumé
For efficiently measuring copper (II) ions in the acidic media of white wine, a new chemosensor based on rhodamine B coupled to a tetraazamacrocyclic ring (13aneNCHNH) was designed and synthesized by a one-pot reaction using ethanol as a green solvent. The obtained chemosensor was characterized via NMR, UV and fluorescent spectra. It was marked with no color emission under neutral pH conditions, with a pink color emission under acidic conditions, and a magenta color emission under acidic conditions where copper (II) ions were present. The sensitivity towards copper (II) ions was tested and verified over Ca, Ag, Zn, Mg, Co, Ni, Fe, Pb, Cd, Fe, and Mn, with a detection limit of 4.38 × 10 M in the fluorescence spectrum.
Mots clés
acidic pH, copper (II) sensor, fluorescent chemosensor, tetraazamacrocycle rhodamine-based, water-soluble
Référence
Sensors (Basel). 2019 Oct 17;19(20):