IL42955A - Method and apparatus for detection and identification of vapours of low volatility compounds - Google Patents

Method and apparatus for detection and identification of vapours of low volatility compounds

Info

Publication number
IL42955A
IL42955A IL42955A IL4295573A IL42955A IL 42955 A IL42955 A IL 42955A IL 42955 A IL42955 A IL 42955A IL 4295573 A IL4295573 A IL 4295573A IL 42955 A IL42955 A IL 42955A
Authority
IL
Israel
Prior art keywords
components
path
atmosphere
flow
detector
Prior art date
Application number
IL42955A
Other versions
IL42955A0 (en
Original Assignee
Analytical Instr 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 Instr Ltd filed Critical Analytical Instr Ltd
Publication of IL42955A0 publication Critical patent/IL42955A0/en
Publication of IL42955A publication Critical patent/IL42955A/en

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, 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
    • G01N27/66—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 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

Claims (1)

1. What we claim low volatility A method of detecting and in an atmosphere comprising the steps of establishing a flow of the atmosphere across and through capable of isolating the components of interest from the remainder of the establishing the presence of components the isolated separating the isolated flow into its vidual components and identifying said individual according to claim 1 which comprises the steps of directing the isolatedJ along a first path from the isolating means to a detector for establishing the presence of the compone ts of interest and thereafter the isolated flow along a second path to the detector and separating the flow into its indiidual components in the second path prior to their introduction into the A method according to claim 1 which comprises the steps of directing the isolated flow along a path from the ing means to the detector to establish the presence of the components of interest and thereafter separating the isolated flow passing along said same path into its separate components and releasing the sepa ated components indiidually for identification in the An apparatus for detecting and identifying components in an atmosphere comprising means for isolating the components of from the a easier gas flow for conveying the Isolated components into a detector to establish the presence of the components in the atmosphere and means in the carrier gas flow path for separating the components one from another for individual identification in the apparatus according to claim in which the isolat ing means comprises a silastomer An apparatus according to claim 4 in which the ating means comprises a chromatographic column and means for selectively raising and lowering the temperature of the apparatus according to claim 4 including first and second gas flow paths between the isolating means and the detector and selectively operable valve means for directing the flow along the first path to establish the presence of the components and thereafter for directing the flow along the second path having a chromatographic column for ating the components one and means for raising and lowering the temperature of the An apparatus according to claim includin a pump for drawing a sample of the atmosphere into the vicinity of the isolating means and for drawing a carrier gas flow through the An apparatus according to claim in which tha detector comprises an electron capture A method of detecting and identifying components in an atmosphere substantially as herein described with reference to the accompanying An apparatus for detecting and identifying components in an atmosphere substantially as herein described with erence to and as illustrated and or of the accompanying For the Applicants Yitzhak Hess insufficientOCRQuality
IL42955A 1973-02-02 1973-08-13 Method and apparatus for detection and identification of vapours of low volatility compounds IL42955A (en)

Applications Claiming Priority (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

Publications (2)

Publication Number Publication Date
IL42955A0 IL42955A0 (en) 1973-11-28
IL42955A true IL42955A (en) 1976-06-30

Family

ID=9793240

Family Applications (1)

Application Number Title Priority Date Filing Date
IL42955A IL42955A (en) 1973-02-02 1973-08-13 Method and apparatus for detection and identification of vapours of low volatility compounds

Country Status (3)

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

Families Citing this family (17)

* 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-Jürgen, Dr., 6701 Fußgönheim Device for sampling in flowing exhaust gases
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
GB2181249B (en) * 1985-08-24 1990-01-10 John Maxwell Bather Method and apparatus for detecting dangerous substances
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
US8671737B2 (en) 2007-09-24 2014-03-18 Freddie R. Brasfield Target odor detection and security apparatus
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
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

Also Published As

Publication number Publication date
IL42955A0 (en) 1973-11-28
US3883739A (en) 1975-05-13
GB1451632A (en) 1976-10-06

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