Optical sensor for the measurement of pH in a fluid, and related

Details Optical sensor for the measurement of pH in a fluid, and related Optical sensor for the measurement of pH in a fluid, and related

1993-06-10

1997-03-04

Thibodeau, Paul J.

Chemical apparatus and process disinfecting, deodorizing, preser

Analyzer, structured indicator, or manipulative laboratory...

Means for analyzing liquid or solid sample

422 8206, 422 8203, 422 8211, 385 12, 385117, 4271632, 427165, 427157, 528 48, 528 70, 528 85, 128631, 128692, G01N 2164

Patent

active

056076444

ABSTRACT:
An optical sensor is provided for measuring the pH of a fluid sample. The sensor is formulated using a fluorescent polymer composition comprising a copolymer of a water-dispersable, polyether-containing urethane olefin precursor and a fluorescent monomer species, wherein the ratio of precursor and fluorescent monomer species is such that a predetermined apparent pKa is provided. The sensor is prepared by coating the distal end of an optical waveguide with the fluorescent polymer composition, and curing the copolymer contained in the composition, e.g., by exposure to radiation of a suitable wavelength.

REFERENCES:
patent: 5166990 (1992-11-01), Riccitelli

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