Fiber-optic fluorescence carbon dioxide sensor for environmental monitoring

DOI to cite this document:: 10.5283/epub.20477

Wolfbeis, Otto S. ; Kovács, Barna ; Goswami, Kisholoy ; Klainer, Stanley M.

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Date of publication of this fulltext: 02 May 2011 10:43

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Abstract

Fiber-optic sensors were developed for monitoring dissolved carbon dioxide in water samples in the 0 to 900 ppm concentration range. A pH-sensitive fluorescent dye (HPTS) was reacted with a cationic quaternary ammonium salt to form an ion pair which was electrostatically bound to the surface of particles of aminocellulose which then were dispersed into a gas-permeable silicone polymer. The green ...