GB750254A - Improvements relating to the analysis of gases - Google Patents

Improvements relating to the analysis of gases

Info

Publication number
GB750254A
GB750254A GB2940253A GB2940253A GB750254A GB 750254 A GB750254 A GB 750254A GB 2940253 A GB2940253 A GB 2940253A GB 2940253 A GB2940253 A GB 2940253A GB 750254 A GB750254 A GB 750254A
Authority
GB
United Kingdom
Prior art keywords
cathode
electrolyte
anode
oxygen
porous
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
GB2940253A
Inventor
Paul Hersch
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.)
Mond Nickel Co Ltd
Original Assignee
Mond Nickel Co Ltd
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
Priority to BE532773D priority Critical patent/BE532773A/xx
Priority to NL98409D priority patent/NL98409C/xx
Application filed by Mond Nickel Co Ltd filed Critical Mond Nickel Co Ltd
Priority to GB2940253A priority patent/GB750254A/en
Priority to FR69157D priority patent/FR69157E/en
Priority to CH336623D priority patent/CH336623A/en
Publication of GB750254A publication Critical patent/GB750254A/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

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)
  • Sampling And Sample Adjustment (AREA)

Abstract

<PICT:0750254/III/1> In gas analysis apparatus for the detection or measurement of oxygen, according to Claim 1 of the parent Specification, the speed of response of the apparatus to oxygen is increased by forming the cathode of openwork structure and interposing a porous carrier for the electrolyte between the cathode and anode. As shown, a glass tube 1 is surrounded by concentric tubes constituting the electrodes and the electrolyte carrier, and the assembly is mounted in a glass vessel formed in two parts 7, 8 connected at 9. The cathode 4 is silver gauze held in position by silver wire 5; the carrier 3 is porous polyvinyl chloride and is soaked with aqueous caustic potash solution; the anode 2 is preferably lead foil, but may also be porous nickel impregnated with cadmium. The gas to be tested is saturated with moisture and enters through tube 10, flows down tube 1, bubbles through a pool of liquid 18, e.g. the electrolyte, and then passes to annular space 14 into contact with the cathode, leaving the apparatus through tube 15. Electric leads 20, 21 are provided for the anode and cathode respectively. Higher concentrations of oxygen are determined by using stainless steel instead of silver for the cathode. An electrolysis apparatus for calibration purposes may be provided as described in the parent Specification and the liquid in this apparatus may be used to saturate the gas sample with moisture. Two or more separate cathodes of different sensitivities may be used with a common anode to provide for different ranges of oxygen concentration. The openwork cathode may be formed from wire mesh, perforated sheet, expanded metal, grids or wires. Other materials suitable for the electrolyte carrier, apart from porous plastics, are filter paper, textile fabric, porous ceramic material, or asbestos. Reference is made to a cell comprising a gold cathode, sulphuric acid as the electrolyte, and a copper anode. The apparatus may be used in connection with the production of oxygen-free nitrogen and argon and the filling of electric light bulbs and radio valves with inert gas.
GB2940253A 1953-10-23 1953-10-23 Improvements relating to the analysis of gases Expired GB750254A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
BE532773D BE532773A (en) 1953-10-23
NL98409D NL98409C (en) 1953-10-23
GB2940253A GB750254A (en) 1953-10-23 1953-10-23 Improvements relating to the analysis of gases
FR69157D FR69157E (en) 1953-10-23 1954-10-21 Improvements to devices for gas analysis
CH336623D CH336623A (en) 1953-10-23 1954-10-22 Method for detecting the presence or measuring the concentration of oxygen in other gases, and apparatus for its implementation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2940253A GB750254A (en) 1953-10-23 1953-10-23 Improvements relating to the analysis of gases

Publications (1)

Publication Number Publication Date
GB750254A true GB750254A (en) 1956-06-13

Family

ID=10291017

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2940253A Expired GB750254A (en) 1953-10-23 1953-10-23 Improvements relating to the analysis of gases

Country Status (5)

Country Link
BE (1) BE532773A (en)
CH (1) CH336623A (en)
FR (1) FR69157E (en)
GB (1) GB750254A (en)
NL (1) NL98409C (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1133923B (en) * 1960-07-09 1962-07-26 Dayton Ernest Carritt Electrolytic measuring device for the determination of gas contents
HU187256B (en) * 1979-04-28 1985-12-28 Magyar Asvanyolaj Es Foeldgaz Method and apparatus for measuring mercapton content /odorant concentration/ of the heating gases with a galvanic cell having silver elctrodes

Also Published As

Publication number Publication date
FR69157E (en) 1958-10-22
BE532773A (en)
CH336623A (en) 1959-02-28
NL98409C (en)

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