Sol-gel based optical carbon dioxide sensor employing dual luminophore referencing for application in food packaging technology.

@article{Bultzingslwen2002SolgelBO,
  title={Sol-gel based optical carbon dioxide sensor employing dual luminophore referencing for application in food packaging technology.},
  author={Christoph von Bultzingsl{\"o}wen and Aisling K McEvoy and Colette McDonagh and Brian D. MacCraith and Ingo Klimant and Christian Krause and Otto S. Wolfbeis},
  journal={The Analyst},
  year={2002},
  volume={127 11},
  pages={1478-83}
}
An optical sensor for the measurement of carbon dioxide in Modified Atmosphere Packaging (MAP) applications has been developed. It is based on the fluorescent pH indicator 1-hydroxypyrene-3,6,8-trisulfonate (HPTS) immobilised in a hydrophobic organically modified silica (ormosil) matrix. Cetyltrimethylammonium hydroxide was used as an internal buffer system… CONTINUE READING