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

fYear

2013

fDate

16-20 June 2013

Firstpage

1139

Lastpage

1141

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Solid-State Sensors, Actuators and Microsystems (TRANSDUCERS & EUROSENSORS XXVII), 2013 Transducers & Eurosensors XXVII: The 17th International Conference on

Conference_Location

Barcelona

Type

conf

DOI

10.1109/Transducers.2013.6626973

Filename

6626973