Chemistry: analytical and immunological testing – Oxygen containing – Inorganic carbon compounds
Patent
1982-07-29
1985-05-07
Marcus, Michael S.
Chemistry: analytical and immunological testing
Oxygen containing
Inorganic carbon compounds
128633, 128636, 128665, 422 58, 422 59, 422 68, 422 86, 436163, 436172, G01N 2164, G01N 2179, G01N 3384
Patent
active
RE0318795
ABSTRACT:
A method and an arrangement for measuring the concentration of gases in a sample includes the generation of a monochromatic light beam having predetermined color characteristic. An indicator generates light signals indicative of the concentration of the gases in a sample to be measured and includes a light-transmissive surface positioned to be impinged by the monochromatic light beam, a diffusion membrane adapted to be placed in the proximity of a sample and being permeable to a selected gas component thereof, and an indicating substance positioned to be impinged by the monochromatic light beam penetrating the light-transmissive surface and by the gas component penetrating the diffusion membrane. The indicating substance reacts when illuminated by the incident monochromatic light by emitting a resultant light beam having an emitted component which has a color characteristic different from the predetermined color characteristic of the monochromatic light beam. The resultant light beam is conducted away from the indicating substance through the light-transmissive surface. Finally, the emitted component is discriminated from the resultant light beam so that the change in the color characteristic of the indicating substance can be measured and correlated with the concentration of gases in the sample.
REFERENCES:
patent: 3754867 (1973-08-01), Guenther
patent: 3822695 (1974-07-01), Takayama
patent: 3830222 (1974-08-01), Chance
patent: 3905767 (1975-09-01), Morris et al.
patent: 3992158 (1976-11-01), Przybylowski et al.
patent: 4041932 (1977-08-01), Fostick
patent: 4050898 (1977-09-01), Goffe et al.
patent: 4115067 (1978-09-01), Lyshkow
patent: 4125372 (1978-11-01), Kawai et al.
Fluorescence Analysis, White et al., pp. 102-115, 298-305, 1970.
Fluorescence Assay in Biology and Medicine, Undenfriend et al., pp. 30, 31, 58, 159, 484, 485, 488-491, 1969.
Oxygen Quenching of Pyrenebutyric Acid Fluorescence in Water, Vaughan et al., pp. 464-473, Biochemistry (9) (3) Feb. 3, 1970.
Lubbers Dietrich W.
Opitz Norbert
Marcus Michael S.
Max-Planck-Gesellschaft zur Forderung der Wissenschaften e.v.
Peterson Gordon L.
LandOfFree
Method and arrangement for measuring the concentration of gases does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and arrangement for measuring the concentration of gases, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and arrangement for measuring the concentration of gases will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1791577