CA2175843A1 - Capillary sampling flow controller - Google Patents

Capillary sampling flow controller

Info

Publication number
CA2175843A1
CA2175843A1 CA002175843A CA2175843A CA2175843A1 CA 2175843 A1 CA2175843 A1 CA 2175843A1 CA 002175843 A CA002175843 A CA 002175843A CA 2175843 A CA2175843 A CA 2175843A CA 2175843 A1 CA2175843 A1 CA 2175843A1
Authority
CA
Canada
Prior art keywords
sampling
capillary
vessel
gas
flow rate
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.)
Granted
Application number
CA002175843A
Other languages
French (fr)
Other versions
CA2175843C (en
Inventor
Philippe Simon
Jean-Pierre Farant
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.)
Martinex R&D Inc
Original Assignee
Martinex R&D 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 Martinex R&D Inc filed Critical Martinex R&D Inc
Publication of CA2175843A1 publication Critical patent/CA2175843A1/en
Application granted granted Critical
Publication of CA2175843C publication Critical patent/CA2175843C/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
    • G01N1/02—Devices for withdrawing samples
    • G01N1/22—Devices for withdrawing samples in the gaseous state
    • G01N1/24—Suction devices
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/22—Devices for withdrawing samples in the gaseous state
    • G01N1/24—Suction devices
    • G01N2001/248—Evacuated containers

Abstract

A capillary sampling flow controller provides an improvement in the process of sampling or monitoring for the analysis of air and gas chemistries; a constant flow rate is used to introduce a specific volume of gas into a vessel or through a trapping media over the selected sampling period. The improvement employs calculated geometry of the capillaries employed to deliver the gas sample to the evacuated vessel. It can also include a pressure reading device installed between the vessel and the capillary, and a filter at the inlet. The length of capillary with available internal diameters is estimated mathematically and confirmed experimentally to achieve any sampling time using any size sampler.
The flow rate obtained from the controller is constant over its operating range and is designed to meet a specific sampling duration to obtain long-term integrated samples. The sampling process becomes completely passive, precise, reliable and simple to operate.
CA002175843A 1995-05-11 1996-05-06 Capillary sampling flow controller Expired - Fee Related CA2175843C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9509577.4A GB9509577D0 (en) 1995-05-11 1995-05-11 Capillary sampling flow controller
GB9509577.4 1995-05-11

Publications (2)

Publication Number Publication Date
CA2175843A1 true CA2175843A1 (en) 1996-11-12
CA2175843C CA2175843C (en) 2007-10-09

Family

ID=10774320

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002175843A Expired - Fee Related CA2175843C (en) 1995-05-11 1996-05-06 Capillary sampling flow controller

Country Status (3)

Country Link
US (1) US5621180A (en)
CA (1) CA2175843C (en)
GB (1) GB9509577D0 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8459098B2 (en) 2009-01-20 2013-06-11 The United States of America, as represented by the Secretary of the Department of Health and Human Services, Centers for Disease Control and Prevention Universal physiologic sampling pump (PSP) capable of rapid response to breathing

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* Cited by examiner, † Cited by third party
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US5763794A (en) * 1997-01-28 1998-06-09 Texaco Inc. Methods for optimizing sampling of a petroleum pipeline
US5962774A (en) * 1998-04-17 1999-10-05 Sandia Corporation Real-time monitoring of volatile organic compounds using chemical ionization mass spectrometry
US5892160A (en) * 1998-05-08 1999-04-06 Skc, Inc. Isothermal flow controller for air sampler
US6477906B1 (en) * 1999-03-02 2002-11-12 Roger Peterson Family Limited Automatic multi-sorbent tube air sampler
US6267143B1 (en) 1999-06-29 2001-07-31 Upchurch Scientific, Inc. Selection valve with ferrule cluster
GB0024227D0 (en) * 2000-10-04 2000-11-15 Secr Defence Air samplers
JP3416121B2 (en) * 2001-02-07 2003-06-16 日本たばこ産業株式会社 Apparatus and method for extracting volatile components
US6593569B2 (en) * 2001-02-08 2003-07-15 Thermo Finnigan Llc Collisional gas delivery apparatus and method
US7122065B2 (en) 2004-02-25 2006-10-17 Honeywell International, Inc. Adapter for low volume air sampler
US20050188773A1 (en) * 2004-02-27 2005-09-01 Fox Richard B. High volume air sampler
US7159475B2 (en) * 2004-02-27 2007-01-09 Honeywell International, Inc. Apparatus and method of sampling semivolatile compounds
US7089747B2 (en) * 2004-02-27 2006-08-15 Honeywell International, Inc. Pressure reduction apparatus and method
EP1764603A1 (en) * 2005-09-20 2007-03-21 AC Analytical Controls Holding B.V. Sampler system
US7350536B2 (en) * 2005-10-14 2008-04-01 Evans Components, Inc. Vacuumized receptacle for sample collection
US7826986B2 (en) * 2008-09-26 2010-11-02 Advanced Energy Industries, Inc. Method and system for operating a mass flow controller
EP2454577B1 (en) * 2009-07-17 2017-09-06 Giuseppe Adriani Device for sampling working liquids of industrial machines
FR2963675B1 (en) * 2010-08-04 2019-06-28 Benoit Auguin DEVICE AND METHOD FOR GAS SAMPLING
US8720287B2 (en) * 2011-02-17 2014-05-13 Perry Haney Gas trap
US9879489B2 (en) 2013-08-14 2018-01-30 David L. Shanks Floating gas trap system using agitation
USD749137S1 (en) 2014-08-08 2016-02-09 Floatair Agitator Limited Liability Company Impeller for fluid agitation
CN104122123B (en) * 2014-08-15 2016-05-18 武汉市天虹仪表有限责任公司 A kind of gaseous mercury sampling apparatus for stationary source
CA3039916A1 (en) * 2016-10-10 2018-04-19 Perkinelmer Health Sciences, Inc. Sampling pumps and closed loop control of sampling pumps to load traps
EP3749441B1 (en) * 2018-02-08 2023-05-24 Bunn-O-Matic Corporation Gas infuser for liquids
FR3110968B1 (en) * 2020-05-29 2022-07-29 Grtgaz Gas leak sampling device with high flow rate
US20220002648A1 (en) * 2020-07-02 2022-01-06 Lg Chem, Ltd. Gas Collection Device
CN112198268B (en) * 2020-08-28 2023-03-14 北京乐氏联创科技有限公司 High-precision atmospheric integral constant-current sampler

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1482123A (en) * 1966-04-08 1967-05-26 Siersatom Sa Aerosol sampling device
US3618822A (en) * 1969-06-05 1971-11-09 Universal Oil Prod Co Emergency oxygen supply device
US4040299A (en) * 1974-11-13 1977-08-09 Ethyl Corporation Air sampling apparatus
CA1161275A (en) * 1981-07-07 1984-01-31 Reginald H. Clark Aerosol exposure monitoring device
US4456014A (en) * 1983-01-03 1984-06-26 Thoratec Laboratories Corporation Flow restrictor
US4776208A (en) * 1987-04-23 1988-10-11 Mark Telephone Products Capillary flow controller for air pressurized telephone cable trace gas

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8459098B2 (en) 2009-01-20 2013-06-11 The United States of America, as represented by the Secretary of the Department of Health and Human Services, Centers for Disease Control and Prevention Universal physiologic sampling pump (PSP) capable of rapid response to breathing

Also Published As

Publication number Publication date
GB9509577D0 (en) 1995-07-05
US5621180A (en) 1997-04-15
CA2175843C (en) 2007-10-09

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