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Optical sensing of pH based on polypyrrole films

de Marcos, Susana and Wolfbeis, Otto S. (1996) Optical sensing of pH based on polypyrrole films. Analytica Chimica Acta 334, pp. 149-153.

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An optical sensor for pH is presented which is based on the use of a thin polypyrrole (PPy) film obtained by chemical oxidation of pyrrole and deposited as a < 1 μm film on the walls of a polystyrene cuvette. The spectrum of PPy displays strong absorption in the near infrared at around 900 nm, and a characteristic minimum at around 550 nm. The shape and intensity of the spectrum are pH-dependent ...


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Item type:Article
Institutions:Chemistry and Pharmacy > Institut für Analytische Chemie, Chemo- und Biosensorik > Chemo- und Biosensorik (Prof. Antje J. Bäumner, formerly Prof. Wolfbeis)
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Keywords:Optical sensors; Sensors; Polypyrrole; Infrared spectrometry
Dewey Decimal Classification:500 Science > 540 Chemistry & allied sciences
Created at the University of Regensburg:Unknown
Deposited on:07 Jun 2011 11:14
Last modified:13 Mar 2014 17:26
Item ID:21012
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