Journal
ELECTROANALYSIS
Volume 29, Issue 10, Pages 2232-2238Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/elan.201700149
Keywords
Human saliva; ions composition in saliva: Na+; K+; Ca2+; Mg2+; Cl-; all solid-state ISE; multisensor platform (MP)
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Funding
- Gdansk University of Technology, Gdansk, PL [DS 030893]
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Human saliva is one of the body fluids which collection method is relatively simple and non-invasive. The article is dedicated to assess concentration (activity) of Na+, K+, Ca2+, Mg2+ and Cl- in fresh, unstimulated or stimulated human saliva samples using single solid contact ion-selective electrodes with conventional reference electrode and self-made multisensor platform (MP) equipped with ion-selective membranes for Na+, K+, Ca2+, Mg2+ and Cl- and reference electrode made in solid state technology, based on dispersed KCl in the polymer. Both kind of electrodes, single ISE and miniaturized electrodes in multisensor platform (ISE-MP) were made of glassy carbon. The electrode surfaces have been modified by conductive polymer (PEDOT) layer deposition; with the exception of Cl- electrode, in which conducting polymer was not applied. Potentiometric measurements were used to compare the changes of the ionic composition in various samples of saliva.
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