GB2171329B - Atmospheric monitoring devices - Google Patents

Atmospheric monitoring devices

Info

Publication number
GB2171329B
GB2171329B GB08603412A GB8603412A GB2171329B GB 2171329 B GB2171329 B GB 2171329B GB 08603412 A GB08603412 A GB 08603412A GB 8603412 A GB8603412 A GB 8603412A GB 2171329 B GB2171329 B GB 2171329B
Authority
GB
United Kingdom
Prior art keywords
liquid
atmospheric monitoring
entry
chambers
monitoring devices
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
GB08603412A
Other versions
GB8603412D0 (en
GB2171329A (en
Inventor
Peter John Hewitt
Philip Reginald Mailes Dare
Christopher Norman Gray
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.)
National Research Development Corp UK
Original Assignee
National Research Development Corp UK
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 National Research Development Corp UK filed Critical National Research Development Corp UK
Publication of GB8603412D0 publication Critical patent/GB8603412D0/en
Publication of GB2171329A publication Critical patent/GB2171329A/en
Application granted granted Critical
Publication of GB2171329B publication Critical patent/GB2171329B/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
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/22—Devices for withdrawing samples in the gaseous state
    • G01N1/2273—Atmospheric sampling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
    • B01D47/02—Separating dispersed particles from gases, air or vapours by liquid as separating agent by passing the gas or air or vapour over or through a liquid bath
    • B01D47/021—Separating dispersed particles from gases, air or vapours by liquid as separating agent by passing the gas or air or vapour over or through a liquid bath by bubbling the gas through a liquid bath
    • 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
    • G01N1/2202—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling
    • 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
    • G01N1/2202—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling
    • G01N2001/222—Other features
    • G01N2001/2223—Other features aerosol sampling 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
    • G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
    • G01N1/40—Concentrating samples
    • G01N1/4055—Concentrating samples by solubility techniques
    • G01N2001/4066—Concentrating samples by solubility techniques using difference of solubility between liquid and gas, e.g. bubbling, scrubbing or sparging

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Molecular Biology (AREA)
  • Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Indicating Or Recording The Presence, Absence, Or Direction Of Movement (AREA)
  • Sampling And Sample Adjustment (AREA)

Abstract

An atmospheric monitoring device of liquid impingement type comprising a vessel (10) for the liquid, with gas entry and exit ports (13, 14) above the liquid (24), and a nozzle (22) depending from the entry port into the liquid, is improved by transverse division into two chambers (11, 12) respectively below the ports, the chambers being separately intercommunicated (16, 15) above and below the liquid level, to produce a recirculatory action enhancing collection efficiency. The nozzle preferably extends substantially to the bottom of the entry chamber and below the lower chamber intercommunication. <IMAGE>
GB08603412A 1985-02-26 1986-02-12 Atmospheric monitoring devices Expired GB2171329B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB858504851A GB8504851D0 (en) 1985-02-26 1985-02-26 Atmospheric monitoring devices

Publications (3)

Publication Number Publication Date
GB8603412D0 GB8603412D0 (en) 1986-03-19
GB2171329A GB2171329A (en) 1986-08-28
GB2171329B true GB2171329B (en) 1988-05-05

Family

ID=10575059

Family Applications (2)

Application Number Title Priority Date Filing Date
GB858504851A Pending GB8504851D0 (en) 1985-02-26 1985-02-26 Atmospheric monitoring devices
GB08603412A Expired GB2171329B (en) 1985-02-26 1986-02-12 Atmospheric monitoring devices

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB858504851A Pending GB8504851D0 (en) 1985-02-26 1985-02-26 Atmospheric monitoring devices

Country Status (1)

Country Link
GB (2) GB8504851D0 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108722071A (en) * 2018-06-02 2018-11-02 陈爱霞 Exhaust treating purifier

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2957150A1 (en) * 2010-03-05 2011-09-09 Nosoco Tech METHOD AND APPARATUS FOR DETECTION IN CONTINUOUS AND IN REALLY REAL TIME OF TRACES OF MICROBES (BACTERIA, VIRUSES) OR DANGEROUS OR ILLEGAL SUBSTANCES (EXPLOSIVES, DRUGS) IN AN ATMOSPHERE

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108722071A (en) * 2018-06-02 2018-11-02 陈爱霞 Exhaust treating purifier

Also Published As

Publication number Publication date
GB8504851D0 (en) 1985-03-27
GB8603412D0 (en) 1986-03-19
GB2171329A (en) 1986-08-28

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee