GB1111496A - Improvements in and relating to the detection and identification of materials - Google Patents

Improvements in and relating to the detection and identification of materials

Info

Publication number
GB1111496A
GB1111496A GB13837/66A GB1383766A GB1111496A GB 1111496 A GB1111496 A GB 1111496A GB 13837/66 A GB13837/66 A GB 13837/66A GB 1383766 A GB1383766 A GB 1383766A GB 1111496 A GB1111496 A GB 1111496A
Authority
GB
United Kingdom
Prior art keywords
fluids
materials
signals
labelling
detector
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
GB13837/66A
Inventor
James Ephraim Lovelock
Edward Radcliffe Adlard
Albert Evans
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.)
Shell Internationale Research Maatschappij BV
Original Assignee
Shell Internationale Research Maatschappij BV
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 Shell Internationale Research Maatschappij BV filed Critical Shell Internationale Research Maatschappij BV
Priority to GB13837/66A priority Critical patent/GB1111496A/en
Priority to DE19671623079 priority patent/DE1623079A1/en
Publication of GB1111496A publication Critical patent/GB1111496A/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
    • G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
    • G01N30/02—Column chromatography
    • G01N30/62—Detectors specially adapted therefor
    • G01N30/64—Electrical detectors
    • G01N30/70—Electron capture detectors
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
    • G01M3/20—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material
    • G01M3/202—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material using mass spectrometer detection systems
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
    • G01N30/02—Column chromatography
    • G01N30/04—Preparation or injection of sample to be analysed
    • G01N30/06—Preparation

Landscapes

  • Chemical & Material Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Electrochemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
  • Sampling And Sample Adjustment (AREA)

Abstract

1,111,496. Detecting fluid trace materials. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. Feb. 1, 1967 [March 29, 1966], No. 13837/66. Heading G1N. Trace materials that can be easily recognized by characteristic electron-capture-signals with an ionization gauge, are used to detect and identify fluids. Two such materials may be used together to provide readily distinguishable signals. This "labelling" is of particular use in detecting leaks and locating an interface between fluids (e. g. petrol and oil) being transported in sequence along a pipe. The fluids are sampled at intervals and passed through one or more chromatographic columns to the detector. The carrier gas is preferably argon with 10% methane or nitrogen. The detector comprises a simple ionisation chamber and may be pulsed to produce signals for controlling flowvalves or mixing pumps. Suitable labelling substances are polyhalogens. such as dichlorofluromethane and long chain halogens (several examples are given).
GB13837/66A 1966-03-29 1966-03-29 Improvements in and relating to the detection and identification of materials Expired GB1111496A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB13837/66A GB1111496A (en) 1966-03-29 1966-03-29 Improvements in and relating to the detection and identification of materials
DE19671623079 DE1623079A1 (en) 1966-03-29 1967-03-28 Procedure for the detection and identification of fluids

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB13837/66A GB1111496A (en) 1966-03-29 1966-03-29 Improvements in and relating to the detection and identification of materials

Publications (1)

Publication Number Publication Date
GB1111496A true GB1111496A (en) 1968-04-24

Family

ID=10030264

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13837/66A Expired GB1111496A (en) 1966-03-29 1966-03-29 Improvements in and relating to the detection and identification of materials

Country Status (2)

Country Link
DE (1) DE1623079A1 (en)
GB (1) GB1111496A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0512404A1 (en) * 1991-05-03 1992-11-11 Nalco Chemical Company Identification of liquid hydrocarbons using chemical markers

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH663843A5 (en) * 1984-08-31 1988-01-15 Barnaulskij Ok B Avtomatiki DEVICE FOR MEASURING A WIRE DIAMETER.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0512404A1 (en) * 1991-05-03 1992-11-11 Nalco Chemical Company Identification of liquid hydrocarbons using chemical markers

Also Published As

Publication number Publication date
DE1623079A1 (en) 1971-04-01

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