Title :
Optical sensors cross-sensitivity amendment: The case study of heavy metals CSPT detection
Author :
Lvova, L. ; Galloni, P. ; Floris, B. ; Di Natale, Corrado ; Lundstrom, I. ; Lippolis, V. ; Garau, A. ; Paolesse, Roberto
Author_Institution :
Dept. of Chem. Sci. & Technol., Univ. Tor Vergata, Rome, Italy
Abstract :
5,10,15,20-Tetraferrocenyl porphyrin (PFc4) and coumarin-based thia-aza macrocycle ligand (L3) were studied for the development of cross-sensitive optical chemical sensors aimed to the determination of transition metal ions. The ligands oppositely vary their fluorimetric response: PFc4 fluorescence is quenched upon the several transition metal ions concentration growth, while the fluorescence of L3 increases upon mercury ions exposure. By the simultaneous incorporation of both ligands in the same membrane, a series of cross-sensitive materials were obtained and tested for transition metal ions detection by CSPT method.
Keywords :
chemical sensors; optical sensors; organic compounds; spectrochemical analysis; transition metals; 5,10,15,20-Tetraferrocenyl porphyrin; L3 fluorescence; PFc4; computer screen photo-assisted technique; coumarin based thia-aza macrocycle ligand; cross-sensitivity amendment; fluorimetric response; heavy metals CSPT detection; optical chemical sensor; optical sensor; transition metal ion; Ions; Metals; Optical buffering; Optical sensors; Particle beam optics; Temperature measurement; CSPT cross-sensitive materials; Porphyrin-ferrocene ligand; thia-aza coumarin-substituted heterocycle ligand; transition metals detection;
Conference_Titel :
Solid-State Sensors, Actuators and Microsystems (TRANSDUCERS & EUROSENSORS XXVII), 2013 Transducers & Eurosensors XXVII: The 17th International Conference on
Conference_Location :
Barcelona
DOI :
10.1109/Transducers.2013.6626973
