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Solid-Contact Ion-Selective Electrodes with Highly SelectiveThioamide Derivatives of p-tert-Butylcalix[4]arene for theDetermination of Lead(II) in Environmental Samples
Abstract
Thioamide derivatives of p-tert-butylcalix[4]arene were used as ionophores in the development of solid-contact ion-selective electrodes based on conducting polymer poly(3,4-ethylenedioxythiophene)/polystyrene sulfonate (PEDOT/PSS) which was synthesized by electrodeposition on the glassy carbon electrodes. The typical ion-selective membranes with optionally two different plasticizers [bis(2-ethylhexyl)sebacate (DOS) and 2-nitrophenyl octyl ether (NPOE)] were investigated. The potentiometric selectivity coefficients were determined by separate solution method (SSM) for Pb2+ over Cu2+, Cd2+ ,Ca2+, Na+, and K+. High selectivity toward Pb2+ was obtained. By applying twoconditioning protocols, a low detection limit log(aDL)≈−9 was achieved. The fabricated ion-selective electrodes were used to determine Pb2+ concentration in environmental samples. The obtained results were compared to analysis done by inductively coupled plasma mass spectrometry (ICPMS).
Authors (7)
-
Grzegorz Lisak
- Laboratory of Analytical Chemistry and Centre for Process Analytical Chemistry and Sensor Technology .
-
Tomasz Sokalski
- Laboratory of Analytical Chemistry and Centre for Process Analytical Chemistry and Sensor Technology .
-
Johan Bobacka
- Laboratory of Analytical Chemistry and Centre for Process Analytical Chemistry and Sensor Technology .
-
Ari Ivaska
- Laboratory of Analytical Chemistry and Centre for Process Analytical Chemistry and Sensor Technology .
-
Andrzej Lewenstam
- AGH University of Science and Technology Faculty of Material Science and Ceramics
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Details
- Category:
- Articles
- Type:
- artykuł w czasopiśmie wyróżnionym w JCR
- Published in:
-
ANALYTICAL CHEMISTRY
no. 85,
edition 3,
pages 1555 - 1561,
ISSN: 0003-2700 - Language:
- English
- Publication year:
- 2013
- Bibliographic description:
- Guziński M., Lisak G., Sokalski T., Bobacka J., Ivaska A., Bochenska M., Lewenstam A.: Solid-Contact Ion-Selective Electrodes with Highly SelectiveThioamide Derivatives of p-tert-Butylcalix[4]arene for theDetermination of Lead(II) in Environmental Samples// ANALYTICAL CHEMISTRY. -Vol. 85, iss. 3 (2013), s.1555-1561
- Verified by:
- Gdańsk University of Technology
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