GB1249403A - Gas analysis - Google Patents

Gas analysis

Info

Publication number
GB1249403A
GB1249403A GB49555/69A GB4955569A GB1249403A GB 1249403 A GB1249403 A GB 1249403A GB 49555/69 A GB49555/69 A GB 49555/69A GB 4955569 A GB4955569 A GB 4955569A GB 1249403 A GB1249403 A GB 1249403A
Authority
GB
United Kingdom
Prior art keywords
dialkylthio
alkylthio
mercury
lead
electro
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
GB49555/69A
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 GB1249403A publication Critical patent/GB1249403A/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
    • 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
    • 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
    • G01N33/0022—General constructional details of gas analysers, e.g. portable test equipment using a number of analysing channels
    • G01N33/0024—General constructional details of gas analysers, e.g. portable test equipment using a number of analysing channels a chemical reaction taking place or a gas being eliminated in one or more channels
    • 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
    • G01N33/0031—General constructional details of gas analysers, e.g. portable test equipment concerning the detector comprising two or more sensors, e.g. a sensor array
    • 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
    • G01N33/0036—General constructional details of gas analysers, e.g. portable test equipment concerning the detector specially adapted to detect a particular component
    • G01N33/0042—SO2 or SO3
    • 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
    • G01N33/0036—General constructional details of gas analysers, e.g. portable test equipment concerning the detector specially adapted to detect a particular component
    • G01N33/0059—Avoiding interference of a gas with the gas to be measured
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters

Landscapes

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

Abstract

1, 249, 403. Electro-chemical analysis; gas analysis. BECKMAN INSTRUMENTS Inc. Oct. 9, 1969 [Nov. 8, 1968], No. 49555/69. Headings G1B, G1N. The quantity of e. g. SO2 or O3 in a gas stream with interferents such as H2S, NO2 or mercaptans or halogens or ammonia is determined by making a measurement before and after the component has been selectively scrubbed from the stream and recording the difference. A suitable electro-chemical measuring cell of the kind described in Specification 1, 098, 653 may be used Fig. 2 (not shown), alternatively known spectro-photometric methods may be employed. OZONE SCRUBBER for ozone measurements may be a heated silver catalyst or P. T. F. E. granules coated with alkylthio mercury chloride, dialkylthio mercury, alkylthio lead chloride, or dialkylthio lead. A method of preparing the granules is described.
GB49555/69A 1968-11-08 1969-10-09 Gas analysis Expired GB1249403A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US77428968A 1968-11-08 1968-11-08

Publications (1)

Publication Number Publication Date
GB1249403A true GB1249403A (en) 1971-10-13

Family

ID=25100807

Family Applications (1)

Application Number Title Priority Date Filing Date
GB49555/69A Expired GB1249403A (en) 1968-11-08 1969-10-09 Gas analysis

Country Status (2)

Country Link
DE (1) DE1956211A1 (en)
GB (1) GB1249403A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0198154A2 (en) * 1985-02-15 1986-10-22 Environmental Technologies Group, Inc. Selective ionization of gas constituents using electrolytic reactions
US8349260B2 (en) 2006-05-19 2013-01-08 Microsensor Systems, Inc. System and method for limiting sensor exposure to ozone
WO2015145265A3 (en) * 2014-03-26 2016-01-14 Aeroqual Ltd. Gas sensor being ozone interference-free
US10509007B1 (en) 2014-12-18 2019-12-17 Aeroqual Limited Measurement of gases

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4003705A (en) * 1975-06-12 1977-01-18 Beckman Instruments, Inc. Analysis apparatus and method of measuring rate of change of electrolyte pH
FR2641080A1 (en) * 1988-12-26 1990-06-29 Centre Nat Rech Scient

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0198154A2 (en) * 1985-02-15 1986-10-22 Environmental Technologies Group, Inc. Selective ionization of gas constituents using electrolytic reactions
EP0198154A3 (en) * 1985-02-15 1986-11-26 Allied Corporation Selective ionization of gas constituents using electrolytic reactions
US4839143A (en) * 1985-02-15 1989-06-13 Allied-Signal Inc. Selective ionization of gas constituents using electrolytic reactions
US8349260B2 (en) 2006-05-19 2013-01-08 Microsensor Systems, Inc. System and method for limiting sensor exposure to ozone
WO2015145265A3 (en) * 2014-03-26 2016-01-14 Aeroqual Ltd. Gas sensor being ozone interference-free
CN106133518A (en) * 2014-03-26 2016-11-16 Aeroqual有限公司 Noiseless gasmetry
CN111272836A (en) * 2014-03-26 2020-06-12 Aeroqual有限公司 Interference-free gas measurement
US10509007B1 (en) 2014-12-18 2019-12-17 Aeroqual Limited Measurement of gases

Also Published As

Publication number Publication date
DE1956211A1 (en) 1970-09-03

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