Chemistry: analytical and immunological testing – Nitrogen containing – Amine and quaternary ammonium
Patent
1997-08-05
2000-01-11
Wallenhorst, Naureen M.
Chemistry: analytical and immunological testing
Nitrogen containing
Amine and quaternary ammonium
436106, 436164, 436172, 436800, 422 55, 422 8205, 422 8207, 422 8208, 422 8211, G01N 3300, G01N 2176
Patent
active
060135298
ABSTRACT:
The present invention provides an ammonia sensor having a pH sensitive fluorophore immobilized in a hydrophobic polymer, wherein the fluorophore can react quantitatively with ammonia and the transducing moiety of the fluorophore is neutrally charged when deprotonated. The present invention also provides a method for detecting ammonia using the ammonia sensor and optical sensing devices that include the ammonia sensor.
REFERENCES:
patent: 4223089 (1980-09-01), Rothe et al.
patent: 5005572 (1991-04-01), Raemer
patent: 5173434 (1992-12-01), Morris
patent: 5330868 (1994-07-01), Santilli
patent: 5372784 (1994-12-01), Morris
patent: 5387525 (1995-02-01), Munkholm
patent: 5506148 (1996-04-01), Munkholm
patent: 5577137 (1996-11-01), Groger
Muller et al. Proc, SPIE-Int. Soc. Opt. Eng., vol. 2388 (Advances in Fluorescence Sensing Technology II) pp. 558-567, 1995.
Preininger et al. Analytica Chimica Acta, vol, 334, pp.113-123, Nov. 1996.
Kar, Satyajit et al. "Fiber-Optic Ammonia Sensor for Measuring Synaptic Glutamate and Extracellular Ammonia",Anal. Chem. 1992, 64, 2438-2443.
Meyerhoff, Mark E,. "Polymer Membrane Electrode Based Potentiometric Ammonia Gas Sensor", Anal. Chem, 1980, 52, 1532-1534.
Mills, Andrew et al., "Equilibrium Studies on Colorimetric Plastic Film Sensors for Carbon Dioxide", Anal. Chem. 1992, 64, 1383-1389.
Ozawa, Satoshi et al., "Ammonia-Gas-Selective Optical Sensors Based On Neutral Ionophores", Anal. Chem. 1991, 63, 640-644.
Rhines, Timothy D. et al., "Fiber-Optic Biosensor for Urea Based on Sensing of Ammonia Gas", Analytica Chimica Acta, 227 (1989) 387-396.
Weigl, Bernhard H. et al., "Sensitivity Studies on Optical Carbon Dioxide Sensors Based on Ion Pairing", Sensors and Actuators, B 28 (1995) 151-156.
Werner, Tobias et al., "Ammonia-Sensitive Polymer Matrix employing Immobilized Indicator Ion Pairs", Analyst, Jun. 1995, vol. 120, 1627-1631.
Wolfbeis, Otto S. "Optical Sensing Based On Analyte Recognition by Enzymes, Carriers and Molecular Interations",Analytica Chimica Acta, 250 (1991) 181-201.
Wolfbeis, Otto S. et al., "Fibre-Optic Fluorescing Sensor for Ammonia", Analytica Chimica Acta, 185 (1996) 321-327.
Bayer Corporation
Wallenhorst Naureen M.
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