GB2250633B - Improvements relating to gas analysis - Google Patents

Improvements relating to gas analysis

Info

Publication number
GB2250633B
GB2250633B GB9122921A GB9122921A GB2250633B GB 2250633 B GB2250633 B GB 2250633B GB 9122921 A GB9122921 A GB 9122921A GB 9122921 A GB9122921 A GB 9122921A GB 2250633 B GB2250633 B GB 2250633B
Authority
GB
United Kingdom
Prior art keywords
gas analysis
improvements relating
relating
analysis
gas
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 - Fee Related
Application number
GB9122921A
Other versions
GB9122921D0 (en
GB2250633A (en
Inventor
Dr Wade L Fite
Stephen M Penn
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.)
Waters Investments Ltd
Extrel CMS LLC
Original Assignee
Waters Investments Ltd
Extrel CMS LLC
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 Waters Investments Ltd, Extrel CMS LLC filed Critical Waters Investments Ltd
Publication of GB9122921D0 publication Critical patent/GB9122921D0/en
Publication of GB2250633A publication Critical patent/GB2250633A/en
Application granted granted Critical
Publication of GB2250633B publication Critical patent/GB2250633B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
    • G01N1/40—Concentrating samples
    • G01N1/405—Concentrating samples by adsorption or absorption
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
    • G01M3/20—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material
    • G01M3/202—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material using mass spectrometer detection systems
    • 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
    • G01N33/0047—Organic compounds
    • G01N33/0049—Halogenated organic compounds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Combustion & Propulsion (AREA)
  • Food Science & Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Sampling And Sample Adjustment (AREA)
GB9122921A 1990-10-31 1991-10-29 Improvements relating to gas analysis Expired - Fee Related GB2250633B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US60693590A 1990-10-31 1990-10-31

Publications (3)

Publication Number Publication Date
GB9122921D0 GB9122921D0 (en) 1991-12-11
GB2250633A GB2250633A (en) 1992-06-10
GB2250633B true GB2250633B (en) 1995-01-25

Family

ID=24430135

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9122921A Expired - Fee Related GB2250633B (en) 1990-10-31 1991-10-29 Improvements relating to gas analysis

Country Status (2)

Country Link
JP (1) JPH04274728A (en)
GB (1) GB2250633B (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998022793A1 (en) * 1996-11-19 1998-05-28 Farfield Sensors Ltd. A chemical sensing system
JP3506599B2 (en) 1998-02-04 2004-03-15 Ｎｅｃエレクトロニクス株式会社 Analysis method
IT1310403B1 (en) * 1999-06-24 2002-02-13 Univ Bologna DEVICE FOR THE ANALYSIS OF ORGANIC COMPOUNDS, PARTICULARLY WATER AND GASEOUS INCAMPIONS.
US6656738B1 (en) 1999-11-17 2003-12-02 Bae Systems Integrated Defense Solutions Inc. Internal heater for preconcentrator
EP1232380A2 (en) * 1999-11-17 2002-08-21 Femtometrics, Inc. Preconcentrator for chemical detection
US6455003B1 (en) 1999-11-17 2002-09-24 Femtometrics, Inc. Preconcentrator for chemical detection
CZ302755B6 (en) * 2004-08-02 2011-10-19 Ústav analytické chemie AV CR, v.v.i. Antimony pre-concentration process for determining thereof by atomic spectrometry methods
GB2434643B (en) * 2006-01-31 2011-06-01 Microsaic Systems Ltd Planar micromachined valve and thermal desorber
TW201124710A (en) * 2009-08-27 2011-07-16 Astrotech Corp Preconcentrating a sample
JP5771458B2 (en) * 2011-06-27 2015-09-02 株式会社日立ハイテクノロジーズ Mass spectrometer and mass spectrometry method
WO2015108969A1 (en) 2014-01-14 2015-07-23 908 Devices Inc. Sample collection in compact mass spectrometry systems
US11927574B2 (en) * 2017-05-15 2024-03-12 The Regents Of The University Of Michigan Progressive cellular architecture for microfabricated gas chromatograph
CN109253982A (en) * 2017-07-12 2019-01-22 上海通用检测技术研究所 infrared leak detector
US10217621B2 (en) * 2017-07-18 2019-02-26 Applied Materials Israel Ltd. Cleanliness monitor and a method for monitoring a cleanliness of a vacuum chamber
CN109342618B (en) * 2018-11-07 2023-04-07 青岛科技大学 Automatic pretreatment equipment for detecting VOCs in material by gas chromatography
CN113670701B (en) * 2021-08-20 2024-01-23 中国科学院西北生态环境资源研究院 Gas purification device, rare gas isotope measurement equipment and method thereof
WO2023097335A1 (en) * 2021-11-29 2023-06-01 Entech Instruments Inc. System and method for diffusive gas sampling for collection of vocs, svocs and/or pfas chemicals in air

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4698071A (en) * 1985-04-15 1987-10-06 Canadian Patents And Development Limited Trace vapor concentrator
US4942135A (en) * 1986-08-04 1990-07-17 The United States Of America As Represented By The United States Department Of Energy Method for preconcentrating a sample for subsequent analysis

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4698071A (en) * 1985-04-15 1987-10-06 Canadian Patents And Development Limited Trace vapor concentrator
US4942135A (en) * 1986-08-04 1990-07-17 The United States Of America As Represented By The United States Department Of Energy Method for preconcentrating a sample for subsequent analysis

Also Published As

Publication number Publication date
JPH04274728A (en) 1992-09-30
GB9122921D0 (en) 1991-12-11
GB2250633A (en) 1992-06-10

Similar Documents

Publication Publication Date Title
US4824789B1 (en) Gas sensor
GB8405481D0 (en) Gas analysis
GB2248940B (en) Gas sensor
GB8925246D0 (en) Gas sensor
EP0488503A3 (en) Gas sensor
GB8807699D0 (en) Improvements relating to chemical analysis
EP0247941A3 (en) Gas sensor
GB2250633B (en) Improvements relating to gas analysis
GB8903585D0 (en) Improvements relating to seals
GB8918714D0 (en) Improved structure for gas range
GB8805105D0 (en) Improvements relating to instruments
GB9017983D0 (en) Gas analysis
GB8611397D0 (en) Gas sensor
GB8725989D0 (en) Gas sensor
GB2216252B (en) Improvements relating to gas fires
GB8927215D0 (en) Improvements relating to ventilators
GB8802561D0 (en) Improvements relating to stoves
GB2226401B (en) Gas analysis
GB2219397B (en) Gas analysis
GB9004909D0 (en) Improvements relating to fireplaces
GB2227097B (en) Improvements relating to movement detectors
GB8902066D0 (en) Improvements relating to gas fires
GB8800973D0 (en) Improvements relating to gas meters
GB8912304D0 (en) Improvements relating to gas burners
GB9000326D0 (en) Gas meters

Legal Events

Date Code Title Description
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19961029