GB1266832A - - Google Patents

Info

Publication number
GB1266832A
GB1266832A GB2018070A GB1266832DA GB1266832A GB 1266832 A GB1266832 A GB 1266832A GB 2018070 A GB2018070 A GB 2018070A GB 1266832D A GB1266832D A GB 1266832DA GB 1266832 A GB1266832 A GB 1266832A
Authority
GB
United Kingdom
Prior art keywords
electron capture
gas
supply
tracer gas
silastomer
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
GB2018070A
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 filed Critical
Publication of GB1266832A publication Critical patent/GB1266832A/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
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
    • G01N15/06—Investigating concentration of particle suspensions
    • G01N15/0606—Investigating concentration of particle suspensions by collecting particles on a support
    • G01N15/0618—Investigating concentration of particle suspensions by collecting particles on a support of the filter type
    • 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
    • G01N27/62—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode
    • G01N27/64—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode using wave or particle radiation to ionise a gas, e.g. in an ionisation chamber

Abstract

1,266,832. Analysing gases. A. JENKINS & R. C. CORNELL. Aug.4, 1970 [April 27, 1970], No.20180/70. Heading G1N. In apparatus for detecting an electron capture tracer gas in a gas supply which is itself, or has as a constituent thereof, an electron capture material, e.g. to detect leaks, the tracer gas is separated from the remainder of the supply by diffusion through a membrane 12, e.g. a silastomer or polythene, and is then drawn into an electron capture detector 18 by a carrier gas stream substantially inert to electron capture.
GB2018070A 1970-04-27 1970-04-27 Expired GB1266832A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2018070 1970-04-27

Publications (1)

Publication Number Publication Date
GB1266832A true GB1266832A (en) 1972-03-15

Family

ID=10141730

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2018070A Expired GB1266832A (en) 1970-04-27 1970-04-27

Country Status (2)

Country Link
US (2) US3699342A (en)
GB (1) GB1266832A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4304752A (en) * 1979-03-23 1981-12-08 Anthony Jenkins Detection of tracer materials in the atmosphere
US4311669A (en) * 1980-08-21 1982-01-19 The Bendix Corporation Membrane interface for ion mobility detector cells
US4424067A (en) 1982-07-29 1984-01-03 Allied Corporation Purification of anhydrous hydrogen fluoride
US4793830A (en) * 1987-12-28 1988-12-27 Murphy Milton K Process for producing high quality gas for instrumentation application using gas separation membranes
US20050211949A1 (en) * 2003-11-13 2005-09-29 Bivens Donald B Detectable refrigerant compositions and uses thereof

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3361908A (en) * 1964-01-03 1968-01-02 Barber Colman Co Method and apparatus for electron attachment detection
US3545931A (en) * 1968-08-28 1970-12-08 Monsanto Co Ammonia analysis system

Also Published As

Publication number Publication date
US3699342A (en) 1972-10-17
USRE28417E (en) 1975-05-06

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years