FR2244171A1 - Measurement of dissolved oxygen content - having membrane covering cell with light sensitive cpd. light source and detector - Google Patents

Measurement of dissolved oxygen content - having membrane covering cell with light sensitive cpd. light source and detector

Info

Publication number
FR2244171A1
FR2244171A1 FR7430994A FR7430994A FR2244171A1 FR 2244171 A1 FR2244171 A1 FR 2244171A1 FR 7430994 A FR7430994 A FR 7430994A FR 7430994 A FR7430994 A FR 7430994A FR 2244171 A1 FR2244171 A1 FR 2244171A1
Authority
FR
France
Prior art keywords
light source
cpd
membrane
detector
measurement
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
FR7430994A
Other languages
French (fr)
Other versions
FR2244171B1 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BBC Brown Boveri AG Switzerland
Original Assignee
BBC Brown Boveri AG Switzerland
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BBC Brown Boveri AG Switzerland filed Critical BBC Brown Boveri AG Switzerland
Publication of FR2244171A1 publication Critical patent/FR2244171A1/en
Application granted granted Critical
Publication of FR2244171B1 publication Critical patent/FR2244171B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
    • G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
    • G01N21/64—Fluorescence; Phosphorescence
    • G01N21/6428—Measuring fluorescence of fluorescent products of reactions or of fluorochrome labelled reactive substances, e.g. measuring quenching effects, using measuring "optrodes"
    • G01N21/643—Measuring fluorescence of fluorescent products of reactions or of fluorochrome labelled reactive substances, e.g. measuring quenching effects, using measuring "optrodes" non-biological material

Landscapes

  • Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Optics & Photonics (AREA)
  • Molecular Biology (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Pathology (AREA)
  • Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)
  • Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)

Abstract

The partial pressure of dissolved O2 in water or other solvents is measured by a cell containg. light sensitive compds. whose sensitivity varies with O2 conc. Soln. flows through tube 1 over cell 6 to cover by membrane 8 which is permeable to O2 but not the solvent. The space behind the membrane is filled with a soln. of a fluorescent cpd. e.g. anthracene. It also contains a light source and a detector connected to a measuring instrument. O2 from the soln. passes through the membrane and partially reduces the fluorescence induced by the light source. The difference gives a measure of the O2 conc.
FR7430994A 1973-09-17 1974-09-13 Measurement of dissolved oxygen content - having membrane covering cell with light sensitive cpd. light source and detector Granted FR2244171A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2346792A DE2346792C3 (en) 1973-09-17 1973-09-17 Device for measuring the oxygen partial pressure in flowing media

Publications (2)

Publication Number Publication Date
FR2244171A1 true FR2244171A1 (en) 1975-04-11
FR2244171B1 FR2244171B1 (en) 1980-05-23

Family

ID=5892841

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7430994A Granted FR2244171A1 (en) 1973-09-17 1974-09-13 Measurement of dissolved oxygen content - having membrane covering cell with light sensitive cpd. light source and detector

Country Status (5)

Country Link
AT (1) AT351304B (en)
CH (1) CH568558A5 (en)
DE (1) DE2346792C3 (en)
FR (1) FR2244171A1 (en)
NL (1) NL7412134A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2359415A1 (en) * 1976-07-20 1978-02-17 Max Planck Gesellschaft OPTICAL MEASURING DEVICE TO DETERMINE THE CONCENTRATIONS OF SUBSTANCES

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1261717A (en) * 1982-12-23 1989-09-26 John R. Bacon Method and apparatus for oxygen determination
DE4332163A1 (en) * 1993-09-22 1995-03-23 Kolibri Umweltanalytik Und On Method and device for pollutant analysis in water samples
US5919710A (en) * 1996-07-18 1999-07-06 The United States Of America As Represented By The Secretary Of The Air Force Optical method for quantitating dissolved oxygen in fuel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2359415A1 (en) * 1976-07-20 1978-02-17 Max Planck Gesellschaft OPTICAL MEASURING DEVICE TO DETERMINE THE CONCENTRATIONS OF SUBSTANCES

Also Published As

Publication number Publication date
NL7412134A (en) 1975-03-19
ATA699274A (en) 1978-12-15
CH568558A5 (en) 1975-10-31
DE2346792B2 (en) 1977-07-21
DE2346792A1 (en) 1975-03-27
AT351304B (en) 1979-07-25
DE2346792C3 (en) 1979-09-20
FR2244171B1 (en) 1980-05-23

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Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse