GB983669A - Electrochemical sensing device - Google Patents

Electrochemical sensing device

Info

Publication number
GB983669A
GB983669A GB890763A GB890763A GB983669A GB 983669 A GB983669 A GB 983669A GB 890763 A GB890763 A GB 890763A GB 890763 A GB890763 A GB 890763A GB 983669 A GB983669 A GB 983669A
Authority
GB
United Kingdom
Prior art keywords
electrolyte
cathode
silver
anode
diaphragm
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.)
Expired
Application number
GB890763A
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.)
Beckman Coulter Inc
Original Assignee
Beckman Instruments Inc
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 Beckman Instruments Inc filed Critical Beckman Instruments Inc
Publication of GB983669A publication Critical patent/GB983669A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
    • G01N27/403—Cells and electrode assemblies
    • G01N27/404—Cells with anode, cathode and cell electrolyte on the same side of a permeable membrane which separates them from the sample fluid, e.g. Clark-type oxygen sensors
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/08—Detecting, measuring or recording devices for evaluating the respiratory organs
    • A61B5/083—Measuring rate of metabolism by using breath test, e.g. measuring rate of oxygen consumption
    • A61B5/0833—Measuring rate of oxygen consumption
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
    • G01N27/416—Systems
    • G01N27/48—Systems using polarography, i.e. measuring changes in current under a slowly-varying voltage

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Molecular Biology (AREA)
  • General Health & Medical Sciences (AREA)
  • Pathology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Obesity (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Physiology (AREA)
  • Pulmonology (AREA)
  • Biophysics (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Emergency Medicine (AREA)
  • Medical Informatics (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Measuring Oxygen Concentration In Cells (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)

Abstract

983, 669. Electric tests. BECKMAN INSTRUMENTS Inc. March 6, 1963 [April 4, 1962], No. 8907/63. Heading G1N. [Also in Division H2] To enable a polarographic cell for measuring gas concentration, in particular oxygen concentration, to be reactivated it is made in two parts 12, 14, the part 12 containing the electrodes and the electrolyte and the part 14 comprising a socket which carries connections to the measuring apparatus. As shown the part 12 comprises a cup 26 of epoxy resin which contains the gelled potassium chloride electrolyte, the silver anode 18, 20 and a coaxial gold cathode 16, 56. A P.T.F.E. diaphragm 36 is held in place by an epoxy resin cap 38 the body of the cup 26 being strengthened by a silver ring 50. The cap 38 has a central bore to allow gas to reach the diaphragm 36 which is separated from the cathode by a thin film of electrolyte. The socket portion 14 makes connection to the anode and cathode through female connectors 78 and 66 the latter having a screw thread to retain part 12. A thermistor 88 compensates for temperature variations. The metal of the female connectors is preferably harder than the anode and cathode as the latter may be discarded and replaced by another unit. A hole 34 allows for expansion or contraction of the electrolyte. The unit is stated to be particularly applicable to oxygen measurements in a pilot's face mask. Silver chloride formed by reaction of silver with the electrolyte stabilizes the depolarization current.
GB890763A 1962-04-04 1963-03-06 Electrochemical sensing device Expired GB983669A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US18510562A 1962-04-04 1962-04-04

Publications (1)

Publication Number Publication Date
GB983669A true GB983669A (en) 1965-02-17

Family

ID=22679614

Family Applications (1)

Application Number Title Priority Date Filing Date
GB890763A Expired GB983669A (en) 1962-04-04 1963-03-06 Electrochemical sensing device

Country Status (3)

Country Link
DE (1) DE1192856B (en)
FR (1) FR1414743A (en)
GB (1) GB983669A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49104176A (en) * 1973-01-29 1974-10-02
FR2427598A1 (en) * 1978-05-30 1979-12-28 Huch Albert TROUGH-SHAPED ELECTRODE, IN PARTICULAR FOR THE DISCONTINUOUS DETERMINATION OF BLOOD GAS CONCENTRATIONS
FR2502336A1 (en) * 1981-03-21 1982-09-24 Draegerwerk Ag ELECTROCHEMICAL MEASURING APPARATUS WITH INTERCHANGEABLE MEMBRANE SUPPORT
GB2132768A (en) * 1982-12-17 1984-07-11 Nat Res Dev Ion-selective electrode
WO2012023888A1 (en) * 2010-08-19 2012-02-23 Adixen Scandinavia Ab Gas sensor housing

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49104176A (en) * 1973-01-29 1974-10-02
FR2427598A1 (en) * 1978-05-30 1979-12-28 Huch Albert TROUGH-SHAPED ELECTRODE, IN PARTICULAR FOR THE DISCONTINUOUS DETERMINATION OF BLOOD GAS CONCENTRATIONS
FR2502336A1 (en) * 1981-03-21 1982-09-24 Draegerwerk Ag ELECTROCHEMICAL MEASURING APPARATUS WITH INTERCHANGEABLE MEMBRANE SUPPORT
GB2132768A (en) * 1982-12-17 1984-07-11 Nat Res Dev Ion-selective electrode
WO2012023888A1 (en) * 2010-08-19 2012-02-23 Adixen Scandinavia Ab Gas sensor housing
US9285251B2 (en) 2010-08-19 2016-03-15 Inficon Ab Gas sensor housing

Also Published As

Publication number Publication date
DE1192856B (en) 1965-05-13
FR1414743A (en) 1965-10-22

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