FR2414196A1 - APPARATUS USABLE FOR ANALYSIS OF THE NITROGEN PROTOXIDE CONCENTRATION IN A GAS - Google Patents

APPARATUS USABLE FOR ANALYSIS OF THE NITROGEN PROTOXIDE CONCENTRATION IN A GAS

Info

Publication number
FR2414196A1
FR2414196A1 FR7809633A FR7809633A FR2414196A1 FR 2414196 A1 FR2414196 A1 FR 2414196A1 FR 7809633 A FR7809633 A FR 7809633A FR 7809633 A FR7809633 A FR 7809633A FR 2414196 A1 FR2414196 A1 FR 2414196A1
Authority
FR
France
Prior art keywords
gas
electrolyte
concentration
analysis
cathode
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.)
Withdrawn
Application number
FR7809633A
Other languages
French (fr)
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of FR2414196A1 publication Critical patent/FR2414196A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/0004—Gaseous mixtures, e.g. polluted air
    • G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
    • G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
    • 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
    • G01N27/406—Cells and probes with solid electrolytes
    • G01N27/407—Cells and probes with solid electrolytes for investigating or analysing gases
    • G01N27/4073—Composition or fabrication of the solid electrolyte
    • G01N27/4074—Composition or fabrication of the solid electrolyte for detection of gases other than oxygen
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N31/00—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
    • G01N31/005—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods investigating the presence of an element by oxidation
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/0004—Gaseous mixtures, e.g. polluted air
    • G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
    • G01N33/0011—Sample conditioning
    • G01N33/0013—Sample conditioning by a chemical reaction

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Pathology (AREA)
  • Immunology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Biochemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Combustion & Propulsion (AREA)
  • Medicinal Chemistry (AREA)
  • Food Science & Technology (AREA)
  • Molecular Biology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
  • Sampling And Sample Adjustment (AREA)

Abstract

L'INVENTION CONCERNE UN APPAREIL POUR L'ANALYSE DE LA CONCENTRATION EN PROTOXYDES D'AZOTE D'UN GAZ. LA CELLULE ELECTROLYTIQUE DE L'APPAREIL COMPREND UN ELECTROLYTE AQUEUX NEUTRE CONTENU DANS UNE CHAMBRE ETANCHEIFIEE, UNE ANODE DE CHARBON ACTIF SITUEE DANS UNE CHEMISE PERFOREE IMMERGEE DANS L'ELECTROLYTE, UNE CATHODE CONSTITUEE D'UNE FEUILLE DE PLATINE, DISPOSEE AU-DESSUS DE L'ELECTROLYTE ET ENTRANT EN CONTACT DIRECT AVEC LE GAZ TRANSFORME, ET UNE MATIERE POUR ASSURER LE MOUILLAGE DE LA CATHODE PAR L'ELECTROLYTE ET ETABLIR UN CONTACT ELECTRIQUE ENTRE LA CATHODE ET L'ELECTROLYTE. APPLICATION A LA DETERMINATION DE LA CONCENTRATION DE SUBSTANCES DANS UN GAZ.THE INVENTION RELATES TO AN APPARATUS FOR THE ANALYSIS OF THE CONCENTRATION OF NITROGEN PROTOXIDES IN A GAS. THE ELECTROLYTIC CELL OF THE APPARATUS INCLUDES A NEUTRAL AQUEOUS ELECTROLYTE CONTAINED IN A WATERPROOF CHAMBER, AN ACTIVE CARBON ANODE LOCATED IN A PERFORATED SHIRT IMMERSED IN ELECTROLYTE, A CATHODE CONSISTING OF A SHEET OF PLATE ABOVE, PROVIDED ABOVE IT 'ELECTROLYTE AND COMING IN DIRECT CONTACT WITH THE GAS TRANSFORMED, AND A MATERIAL TO ENSURE THE WETTING OF THE CATHODE BY ELECTROLYTE AND TO ESTABLISH AN ELECTRICAL CONTACT BETWEEN THE CATHODE AND THE ELECTROLYTE. APPLICATION TO THE DETERMINATION OF THE CONCENTRATION OF SUBSTANCES IN A GAS.

FR7809633A 1978-01-09 1978-03-31 APPARATUS USABLE FOR ANALYSIS OF THE NITROGEN PROTOXIDE CONCENTRATION IN A GAS Withdrawn FR2414196A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB706/78A GB1562481A (en) 1978-01-09 1978-01-09 Apparatus for analysis of nitrogen oxides

Publications (1)

Publication Number Publication Date
FR2414196A1 true FR2414196A1 (en) 1979-08-03

Family

ID=9709127

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7809633A Withdrawn FR2414196A1 (en) 1978-01-09 1978-03-31 APPARATUS USABLE FOR ANALYSIS OF THE NITROGEN PROTOXIDE CONCENTRATION IN A GAS

Country Status (8)

Country Link
JP (1) JPS5495295A (en)
BE (1) BE865134A (en)
DE (1) DE2813803A1 (en)
ES (1) ES469719A1 (en)
FR (1) FR2414196A1 (en)
GB (1) GB1562481A (en)
IT (1) IT1105880B (en)
NL (1) NL7803398A (en)

Also Published As

Publication number Publication date
IT7803400A0 (en) 1978-04-20
ES469719A1 (en) 1979-01-16
IT1105880B (en) 1985-11-04
BE865134A (en) 1978-07-17
DE2813803A1 (en) 1979-07-12
GB1562481A (en) 1980-03-12
NL7803398A (en) 1979-07-11
JPS5495295A (en) 1979-07-27

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Legal Events

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