FR2441166A1 - Electrochemical diffusion measuring cell for determining gas - esp. sulphur di:oxide and nitrogen oxide in fluid giving prolonged stable operation - Google Patents

Electrochemical diffusion measuring cell for determining gas - esp. sulphur di:oxide and nitrogen oxide in fluid giving prolonged stable operation

Info

Publication number
FR2441166A1
FR2441166A1 FR7927589A FR7927589A FR2441166A1 FR 2441166 A1 FR2441166 A1 FR 2441166A1 FR 7927589 A FR7927589 A FR 7927589A FR 7927589 A FR7927589 A FR 7927589A FR 2441166 A1 FR2441166 A1 FR 2441166A1
Authority
FR
France
Prior art keywords
esp
gas
oxide
measuring
sulphur
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.)
Pending
Application number
FR7927589A
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.)
GRABNER HANS JURGEN
Original Assignee
GRABNER HANS JURGEN
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 GRABNER HANS JURGEN filed Critical GRABNER HANS JURGEN
Publication of FR2441166A1 publication Critical patent/FR2441166A1/en
Pending 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
    • G01N27/4045—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 for gases other than oxygen

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)
  • Measuring Oxygen Concentration In Cells (AREA)

Abstract

Electrochemical diffusion measuring cell for determining the concn. of a gas, esp. SO2 or NOx, in a fluid, esp. a liquid, has a layer of electrolyte between the measuring and reference electrodes, which are sepd. by a gas-permeable membrane. There is a diffuser, consisting of one or more layers of electrically insulating, chemically neutral fabric between the measuring electrode and the membrane. There are uniformly distributed channels for the gas through each layer of fabric. The novel features are that the electrolyte layer consists of an acid electrolyte (aq. H2SO4, HClO4 or H3PO4) and the anodic measuring electrode of (vitreous)carbon, whilst the open area of the channels through (at least one of the layers of) the fabric is max. 20 (max. 10)%. The cell has increased measuring stability for long operating periods, even at high concns. of the gas to be measured and of impurities. Pref. the diffuser is made from (polyester) monofilaments and is under 0.5 mm thick.
FR7927589A 1978-11-13 1979-11-08 Electrochemical diffusion measuring cell for determining gas - esp. sulphur di:oxide and nitrogen oxide in fluid giving prolonged stable operation Pending FR2441166A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19782849209 DE2849209C2 (en) 1978-11-13 1978-11-13 Electrochemical diffusion measuring cell

Publications (1)

Publication Number Publication Date
FR2441166A1 true FR2441166A1 (en) 1980-06-06

Family

ID=6054565

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7927589A Pending FR2441166A1 (en) 1978-11-13 1979-11-08 Electrochemical diffusion measuring cell for determining gas - esp. sulphur di:oxide and nitrogen oxide in fluid giving prolonged stable operation

Country Status (2)

Country Link
DE (1) DE2849209C2 (en)
FR (1) FR2441166A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0120108A1 (en) * 1983-03-25 1984-10-03 Dräger Nederland B.V. Electrochemical cell for determining a particular component of a fluid
FR2892197A1 (en) * 2005-10-19 2007-04-20 Radiometer Analytical Soc Par Amperometric analysis for measuring sulfur dioxide concentration in, e.g. wine, involves applying electrochemical treatment to measurement electrode such that electrode is traversed by positive and negative electric currents

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109490508B (en) * 2018-10-23 2021-10-29 中国科学院合肥物质科学研究院 Soil alkaline hydrolysis nitrogen-containing test prediction system

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1465387A (en) * 1965-05-03 1967-01-13 Carus Carl Gustav Device preferably for determining the oxygen content of liquids or gases
FR1597039A (en) * 1968-10-11 1970-06-22
US3575836A (en) * 1969-02-14 1971-04-20 Beckman Instruments Inc Polarographic sensor
FR2111421A5 (en) * 1970-10-15 1972-06-02 Gen Electric
US3708412A (en) * 1971-10-13 1973-01-02 Honeywell Inc Electrochemical cell with composite electrode-membrane
FR2309864A1 (en) * 1974-11-29 1976-11-26 Draegerwerk Ag Monitoring sulphur dioxide content of air - with continuously operating measurement cell
FR2351410A1 (en) * 1976-05-15 1977-12-09 Bayer Ag ELECTROCHEMICAL DETECTOR TO DETECT TRACES OF GAS

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1233173B (en) * 1963-08-14 1967-01-26 Basf Ag Galvanic element for the amperometric determination of oxidizable liquids or gases
US3756923A (en) * 1970-11-30 1973-09-04 H Dahms Method of determining so2 concentration
US3763025A (en) * 1971-11-22 1973-10-02 Dynasciences Corp Method and apparatus for measuring nitrogen oxides and sulfur dioxideconcentrations
DE2539771A1 (en) * 1975-09-06 1977-03-17 Hellige Gmbh Polarographic Clark-type detector - having porous polypropylene membrane and esp. for transcutane measurement of gas concn. in blood

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1465387A (en) * 1965-05-03 1967-01-13 Carus Carl Gustav Device preferably for determining the oxygen content of liquids or gases
FR1597039A (en) * 1968-10-11 1970-06-22
US3575836A (en) * 1969-02-14 1971-04-20 Beckman Instruments Inc Polarographic sensor
FR2111421A5 (en) * 1970-10-15 1972-06-02 Gen Electric
US3708412A (en) * 1971-10-13 1973-01-02 Honeywell Inc Electrochemical cell with composite electrode-membrane
FR2309864A1 (en) * 1974-11-29 1976-11-26 Draegerwerk Ag Monitoring sulphur dioxide content of air - with continuously operating measurement cell
FR2351410A1 (en) * 1976-05-15 1977-12-09 Bayer Ag ELECTROCHEMICAL DETECTOR TO DETECT TRACES OF GAS

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0120108A1 (en) * 1983-03-25 1984-10-03 Dräger Nederland B.V. Electrochemical cell for determining a particular component of a fluid
FR2892197A1 (en) * 2005-10-19 2007-04-20 Radiometer Analytical Soc Par Amperometric analysis for measuring sulfur dioxide concentration in, e.g. wine, involves applying electrochemical treatment to measurement electrode such that electrode is traversed by positive and negative electric currents

Also Published As

Publication number Publication date
DE2849209C2 (en) 1983-02-03
DE2849209A1 (en) 1980-05-14

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