GB1388340A - Electrochemical cell - Google Patents

Electrochemical cell

Info

Publication number
GB1388340A
GB1388340A GB4694573A GB4694573A GB1388340A GB 1388340 A GB1388340 A GB 1388340A GB 4694573 A GB4694573 A GB 4694573A GB 4694573 A GB4694573 A GB 4694573A GB 1388340 A GB1388340 A GB 1388340A
Authority
GB
United Kingdom
Prior art keywords
membrane
ammonia
electrolyte
electrode
agc1
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
GB4694573A
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.)
Thermo Orion Inc
Original Assignee
Orion Research 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 Orion Research Inc filed Critical Orion Research Inc
Publication of GB1388340A publication Critical patent/GB1388340A/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
    • G01N27/416—Systems
    • G01N27/4162—Systems investigating the composition of gases, by the influence exerted on ionic conductivity in a liquid

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Molecular Biology (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Abstract

1388340 Ammonia sensor ORION RESEARCH INC 8 Oct 1973 [22 March 1973] 46945/73 Heading G1N In an ammonia sensor cell comprising a hydrogen ion sensitive electrode 20 and a reference electrode 36 in contact with a standard electrolyte 26, an ammonia permeable film 28 separates the electrolyte from a sample and comprises a thin microporous PTFE membrane reinforced by an ammonia and alkali resistant polymer mesh, more rigid than the membrane and bonded thereto. The membrane preferably has an average pore size of 0.6 microns, a porosity of about 50% and a thickness of 0.005 to 0.007 inches. The mesh is preferably laminated to the membrane and is of triangular configuration and formed of a polyolefin, preferably polyethylene or polypropylene. The cell electrodes are preferably a glass hydrogen ion sensitive electrode separated from the membrane by spacer 30 and an Ag/AgC1 reference. The electrolyte is preferably a dissolved ammonium salt, preferably ammonium chloride or one having a solubility of 0.001-1M of an acid of pk#3. A neutral chloride e.g. NaCl or Kc1 is added to provide a reference for the Ag/AgC1 electrode.
GB4694573A 1973-03-22 1973-10-08 Electrochemical cell Expired GB1388340A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US34389173A 1973-03-22 1973-03-22

Publications (1)

Publication Number Publication Date
GB1388340A true GB1388340A (en) 1975-03-26

Family

ID=23348119

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4694573A Expired GB1388340A (en) 1973-03-22 1973-10-08 Electrochemical cell

Country Status (1)

Country Link
GB (1) GB1388340A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0075410A2 (en) * 1981-09-23 1983-03-30 Critikon, Inc. Support and anchoring mechanism for membranes in selectively responsive field effect devices
US4479865A (en) * 1980-11-28 1984-10-30 Ingold Electrodes Electrode assembly
WO1985004482A1 (en) * 1984-03-27 1985-10-10 University Of Strathclyde Electrochemical assembly

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4479865A (en) * 1980-11-28 1984-10-30 Ingold Electrodes Electrode assembly
EP0075410A2 (en) * 1981-09-23 1983-03-30 Critikon, Inc. Support and anchoring mechanism for membranes in selectively responsive field effect devices
EP0075410A3 (en) * 1981-09-23 1984-03-21 Critikon, Inc. Support and anchoring mechanism for membranes in selectively responsive field effect devices
WO1985004482A1 (en) * 1984-03-27 1985-10-10 University Of Strathclyde Electrochemical assembly

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee