| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5029386 | Procedia Engineering | 2016 | 5 Pages |
Abstract
The binding properties of two 2,8-dithia-5-aza-2,6-pyridinophane-based ligands, bearing respectively coumarin (HNCum) and naphthol-benzoxaazole (HNBO) optically active units as pendant arms, were studied with the aim of transition metal cations selective detection. The novel all-solid-state optodes were obtained by inclusion of fluorophores inside PVC-based polymeric films. The influence of lipophilic sites incorporation and plasticizer nature on pyridinophane-based optodes response was investigated. An enhanced selectivity of the ligands towards Cadmium(II) and Zinc(II) ions was detected. Light Emitting Diode, LED 380Â nm, was used as light source, and a digital camera as a signal detector. The results obtained demonstrated the suitability of the developed optodes to perform fast and low cost simultaneous monitoring of Zn2+and Cd2+ ions by means of familiar devices and chemometrics.
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Authors
Larisa Lvova, Corrado Di Natale, Roberto Paolesse, Luca Giorgi, Vieri Fusi, Alessandra Garau, Vito Lippolis,