GB1451632A - Method for the qualitative and quantitative detection of vapours from low volatility compounds - Google Patents

Method for the qualitative and quantitative detection of vapours from low volatility compounds

Info

Publication number
GB1451632A
GB1451632A GB528573A GB528573A GB1451632A GB 1451632 A GB1451632 A GB 1451632A GB 528573 A GB528573 A GB 528573A GB 528573 A GB528573 A GB 528573A GB 1451632 A GB1451632 A GB 1451632A
Authority
GB
United Kingdom
Prior art keywords
components
detector
column
temperature
vapours
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
GB528573A
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.)
Analytical Instruments Ltd
Original Assignee
Analytical Instruments Ltd
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 Analytical Instruments Ltd filed Critical Analytical Instruments Ltd
Priority to GB528573A priority Critical patent/GB1451632A/en
Publication of GB1451632A publication Critical patent/GB1451632A/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, electro-chemical, or magnetic means
    • G01N27/62—Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means by investigating the ionisation of gases; by investigating electric discharges, e.g. emission of cathode
    • G01N27/64—Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means by investigating the ionisation of gases; by investigating electric discharges, e.g. emission of cathode using wave or particle radiation to ionise a gas, e.g. in an ionisation chamber
    • G01N27/66—Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means by investigating the ionisation of gases; by investigating electric discharges, e.g. emission of cathode using wave or particle radiation to ionise a gas, e.g. in an ionisation chamber and measuring current or voltage
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T436/00—Chemistry: analytical and immunological testing
    • Y10T436/25—Chemistry: analytical and immunological testing including sample preparation
    • Y10T436/25375—Liberation or purification of sample or separation of material from a sample [e.g., filtering, centrifuging, etc.]
    • Y10T436/255—Liberation or purification of sample or separation of material from a sample [e.g., filtering, centrifuging, etc.] including use of a solid sorbent, semipermeable membrane, or liquid extraction

Abstract

1451632 Gas chromatography ANALYTICAL INSTRUMENTS Ltd 31 Jan 1974 [2 Feb 1973] 5285/73 Heading B1H [Also in Division G1] Components in an atmosphere, for example the vapours of explosives, drugs and halogenated hydrocarbons, are detected and identified by a method comprising isolating the components from the atmosphere, for example by drawing them through silastomer membrane 2 by means of pump 11 and conveying a flow of the isolated components directly to a detector 8 to establish the presence of the components in the detector, then separating a continuing flow of the isolated components into its individual components, for example by means of chromatography column 7 and conveying the separated individual components into the detector for identification. The detector may be an electron capture detector. The apparatus shown has valve 5 for directing an argon carrier gas flow carrying the isolated components along the direct path 6 to detector 8 or through chromatography column 7. The column is initially maintained at ambient temperature to allow absorption of the components, then the temperature of the column is raised gradually to elute the components. In another embodiment (Fig. 2, not shown) valve 5 and pump 11 are omitted and chromatography column 7 is initially maintained at a temperature high enough to prevent retention of any of the components, the column temperature being reduced when the presence of the components has been established to allow their chromatographic separation for identification.
GB528573A 1973-02-02 1973-02-02 Method for the qualitative and quantitative detection of vapours from low volatility compounds Expired GB1451632A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB528573A GB1451632A (en) 1973-02-02 1973-02-02 Method for the qualitative and quantitative detection of vapours from low volatility compounds

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB528573A GB1451632A (en) 1973-02-02 1973-02-02 Method for the qualitative and quantitative detection of vapours from low volatility compounds
US35628673 US3883739A (en) 1973-02-02 1973-05-02 Method for the qualitative and quantitative detection of vapours from low volatility compounds
IL4295573A IL42955A (en) 1973-02-02 1973-08-13 Method and apparatus for detection and identification of vapours of low volatility compounds

Publications (1)

Publication Number Publication Date
GB1451632A true GB1451632A (en) 1976-10-06

Family

ID=9793240

Family Applications (1)

Application Number Title Priority Date Filing Date
GB528573A Expired GB1451632A (en) 1973-02-02 1973-02-02 Method for the qualitative and quantitative detection of vapours from low volatility compounds

Country Status (3)

Country Link
US (1) US3883739A (en)
GB (1) GB1451632A (en)
IL (1) IL42955A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2181249A (en) * 1985-08-24 1987-04-15 John Maxwell Bather Method and apparatus for detecting dangerous substances

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1482611A (en) * 1974-04-08 1977-08-10 Lovelock J Selective detection of a component in an atmosphere
DE2446404C3 (en) * 1974-09-28 1981-11-26 Becker, Wolf-Juergen, Dr., 6701 Fussgoenheim, De
US4166379A (en) * 1975-03-11 1979-09-04 Pye Limited Apparatus for the detection of volatile organic substances
US3997297A (en) * 1975-03-27 1976-12-14 Anthony Jenkins Method and apparatus for detecting a constituent in an atmosphere
SU684441A1 (en) * 1977-01-24 1979-09-05 Ордена Ленина Институт Химической Физики Ан Ссср Apparatus for radiochromatographic analysis
US4304752A (en) * 1979-03-23 1981-12-08 Anthony Jenkins Detection of tracer materials in the atmosphere
CA1279207C (en) * 1986-02-27 1991-01-22 William R. Stott Method and apparatus for trace sample collection
US4964309A (en) * 1989-02-16 1990-10-23 Ion Track Instruments Portal vapor detection system
CA2097363A1 (en) * 1992-06-03 1993-12-04 Hideo Ueda Expired air examination device and method for clinical purpose
US5859362A (en) * 1996-10-22 1999-01-12 Revenue Canada Trace vapor detection
JP2000028579A (en) 1998-07-08 2000-01-28 Hitachi Ltd Sample gas collecting device and hazardous substance detecting device
KR100983827B1 (en) * 2007-08-20 2010-09-27 동양물산기업 주식회사 Apparatus and method of analyzing constituents of gas in oral cavity and alveolar gas
US7913540B2 (en) * 2007-09-24 2011-03-29 Brasfield Freddie R Odor screening system
US8806914B2 (en) 2007-09-24 2014-08-19 Freddie R. Brasfield Target odor detection and security apparatus
US8671737B2 (en) 2007-09-24 2014-03-18 Freddie R. Brasfield Target odor detection and security apparatus
US8701463B2 (en) 2007-09-24 2014-04-22 Freddie R. Brasfield Target odor detection and security apparatus

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3725009A (en) * 1968-06-24 1973-04-03 J Lovelock Detection of trace gases utilizing an electron capture detector
US3590247A (en) * 1968-08-19 1971-06-29 Richard Moore Holford Method and apparatus for monitoring a gaseous atmosphere for radioactive isotopes including organic iodine compounds

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2181249A (en) * 1985-08-24 1987-04-15 John Maxwell Bather Method and apparatus for detecting dangerous substances
GB2181249B (en) * 1985-08-24 1990-01-10 John Maxwell Bather Method and apparatus for detecting dangerous substances

Also Published As

Publication number Publication date
US3883739A (en) 1975-05-13
IL42955D0 (en) 1973-11-28
IL42955A (en) 1976-06-30

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Legal Events

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