Affordable Access

Fiber-optic fluorescence carbon dioxide sensor for environmental monitoring

Springer Verlag
Publication Date
  • 540 Chemie


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 fluorescence of the base form was monitored using a fiber optic fluorometer. The use of the aminocellulose enhanced the stability and lifetime of the sensor and also increased the fluorescence of the sensor membrane because the particles act as scattering centers. The characteristics of the sensors are described with respect to dynamic range, reproducibility, long-term stability and temperature dependence.

There are no comments yet on this publication. Be the first to share your thoughts.


Seen <100 times

More articles like this

A dual fiber-optic sensor for oxygen and carbon di...

on Journal of Tongji Medical Univ... 1993

Ratiometric fluorescence-based dissolved carbon di...

on Analytical and bioanalytical c... November 2010

Sensitivity of fiber-optic carbon dioxide sensors...

on Sensors and Actuators B Chemic... Jan 01, 2003
More articles like this..