Chemistry: analytical and immunological testing – Oxygen containing – Inorganic carbon compounds
Patent
1995-09-12
1997-09-30
Snay, Jeffrey
Chemistry: analytical and immunological testing
Oxygen containing
Inorganic carbon compounds
436163, 436172, 422 8208, G01N 2164
Patent
active
056725159
ABSTRACT:
A simultaneous dual excitation/single emission ratiometric method using fiber optic sensors is provided for detecting or measuring a parameter of interest in a sample, including pH, concentration of gases such as CO.sub.2, and the like. The method involves simultaneously providing modulated optical light corresponding to first and second regions of an indicator species' absorption or excitation spectrum, detecting modulated emission signals from the indicator species, demodulating the emission signals, calculating the apparent quantity of analyte present in the sample from the indicator emission signals and correcting the apparent quantity of analyte present for variations resulting from external factors, by determining the ratio of the demodulated indicator emission signals. An apparatus is provided for performing the method as well.
REFERENCES:
patent: 4548907 (1985-10-01), Seitz et al.
patent: 4792689 (1988-12-01), Peterson
patent: 5094958 (1992-03-01), Klainer et al.
patent: 5102625 (1992-04-01), Milo
patent: 5114864 (1992-05-01), Walt
patent: 5307146 (1994-04-01), Porter et al.
patent: 5315993 (1994-05-01), Alcala
patent: 5383023 (1995-01-01), Walleczek
Optical Sensors Incorporated
Snay Jeffrey
LandOfFree
Simultaneous dual excitation/single emission fluorescent sensing does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Simultaneous dual excitation/single emission fluorescent sensing, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Simultaneous dual excitation/single emission fluorescent sensing will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2256192