Chemistry: analytical and immunological testing – Nitrogen containing – Oxides of nitrogen
Patent
1985-08-08
1990-05-29
Hill, Jr., Robert J.
Chemistry: analytical and immunological testing
Nitrogen containing
Oxides of nitrogen
2504591, 422 56, 422 57, 422 8206, 422 8207, 436 74, 436 79, 436121, 436172, G01N 2164, G01N 2165
Patent
active
049295616
ABSTRACT:
A method and apparatus for monitoring the physical and chemical properties of a sample fluid by measuring an optical signal generated by a fluorescent substance and modulated by an absorber substance. The emission band of the fluorescent substance overlaps the absorption band of the absorber substance, and the degree of overlap is dependent on the physical and chemical properties of the sample fluid. The fluorescent substance and absorber substance are immobilized on a substrate so that an effective number of molecules thereof are sufficiently close for resonant energy transfer to occur, thereby providing highly efficient modulation of the fluorescent emissions of the fluorescent substance by the absorber substance.
REFERENCES:
patent: 3904373 (1975-09-01), Harper
patent: 3998591 (1976-12-01), Eckfeldt
patent: 4003707 (1977-01-01), Lubbers et al.
patent: 4075493 (1978-02-01), Wickersheim
patent: 4132527 (1979-01-01), Mackawa et al.
patent: 4174384 (1979-11-01), Ullman et al.
patent: 4200110 (1980-04-01), Peterson et al.
patent: 4215275 (1980-07-01), Wickersheim
patent: 4220450 (1980-09-01), Maggio
patent: 4245507 (1981-01-01), Samulski
patent: 4279773 (1981-07-01), Franey et al.
patent: 4344438 (1982-08-01), Schultz
patent: 4447546 (1984-05-01), Hirschfeld
patent: 4495293 (1985-01-01), Shaffar
patent: 4682895 (1987-07-01), Costello
patent: 4724217 (1988-02-01), Miller
Saltzman, Anal. Chem., vol. 26, No. 12, pp. 1948-1955, 12/1954.
Nakamura et al, Talanta, vol. 26, pp. 921-927, 1979.
Pacey et al, Analyst, vol. 106, pp. 636-640, 1981.
Wickersheim et al, Industrial Research & Development, "Recent Advances in Optical Temperature Measurement", 1979.
Hirschfeld, "Reabsorption Sensing in Fluorescence Spectroscopy", UCRL Abstract No. 89736 ABST, published by Pittsberg Conference on Scientific Instrumentation, 1984.
Hill Jr. Robert J.
Macevicz Stephen C.
Regents of the University of California
Sartorio Henry P.
LandOfFree
Absorption-emission optrode and methods of use thereof does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Absorption-emission optrode and methods of use thereof, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Absorption-emission optrode and methods of use thereof will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-520607