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Sensors 2007, 7(12), 3027-3042; doi:10.3390/s7123027
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State Key Laboratory of Nonlinear Mechanics (LNM), Institute of Mechanics, Chinese Academy of Sciences, Beijing 100080, China

1, 1,* , 2 and 2
1 Electronic & Computer Engineering Department, University of Limerick, Limerick, Ireland 2 Physics Department, University of Limerick, Limerick, Ireland
* Author to whom correspondence should be addressed.
Received: 20 August 2007 / Accepted: 26 November 2007 / Published: 30 November 2007
(This article belongs to the Special Issue State-of-the-Art Polymer Based pH Sensors)
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Abstract

This paper reviews current state-of-the-art methods of measuring pH levels that are based on polymer materials. These include polymer-coated fibre optic sensors, devices with electrodes modified with pH-sensitive polymers, fluorescent pH indicators, potentiometric pH sensors as well as sensors that use combinatory approach for ion concentration monitoring.
Keywords: conductive polymer; pH measurement; response mechanism; sensor application. conductive polymer; pH measurement; response mechanism; sensor application.
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).
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Korostynska, O.; Arshak, K.; Gill, E.; Arshak, A. State Key Laboratory of Nonlinear Mechanics (LNM), Institute of Mechanics, Chinese Academy of Sciences, Beijing 100080, China. Sensors 2007, 7, 3027-3042.

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