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Development of miniature all-solid-state potentiometric sensing system

Anastasova-Ivanova, Salzitsa and Mattinen, Ulriika and Radu, Aleksandar and Bobacka, Johan and Lewenstam, Andrzej and Migdalski, Jan and Danielewski, Marek and Diamond, Dermot (2010) Development of miniature all-solid-state potentiometric sensing system. Sensors and Actuators B: Chemical, 146 (1). pp. 199-205. ISSN 0925-4005

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A procedure for the development of a pen-like, multi-electrode potentiometric sensing platform is described. The platform comprises a seven-in-one electrode incorporating all-solid-state ion-selective and reference electrodes based on the conductive polymer (poly(3,4-ethylenedioxythiophene) (PEDOT)) as an intermediate layer between the contacts and ion-selective membranes. The ion-selective electrodes are based on traditional, ionophore-based membranes, while the reference electrode is based on a polymer membrane doped with the lipophilic salt tetrabutyl ammonium tetrabutyl borate (TBA-TBB). The electrodes, controlled with a multichannel detector system, were used for simultaneous determination of the concentration of Pb2+ and pH in environmental water samples. The results obtained using pH-selective electrodes were compared with data obtained using a conventional pH meter and the average percent difference was 0.3%. Furthermore, the sensing system was successfully used for lead-speciation analysis in environmental water samples.

Item Type:Article (Published)
Uncontrolled Keywords:solid-contact electrode; ion-selective electrode; reference electrode; potentiometry; speciation; water analysis;
Subjects:Physical Sciences > Chemistry
DCU Faculties and Centres:DCU Faculties and Schools > Faculty of Science and Health > School of Chemical Sciences
Research Initiatives and Centres > National Centre for Sensor Research (NCSR)
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Copyright Information:Copyright © 2010 Elsevier B.V.
Use License:This item is licensed under a Creative Commons Attribution-NonCommercial-Share Alike 3.0 License. View License
ID Code:15333
Deposited On:19 Apr 2010 12:57 by Aleksandar Radu. Last Modified 19 Apr 2010 12:57

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