GB1261596A - Capillary arc plasma source for and method of spectrochemical analysis - Google Patents

Capillary arc plasma source for and method of spectrochemical analysis

Info

Publication number
GB1261596A
GB1261596A GB30399/69A GB3039969A GB1261596A GB 1261596 A GB1261596 A GB 1261596A GB 30399/69 A GB30399/69 A GB 30399/69A GB 3039969 A GB3039969 A GB 3039969A GB 1261596 A GB1261596 A GB 1261596A
Authority
GB
United Kingdom
Prior art keywords
passage
chamber
tube
arc
gas
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
GB30399/69A
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.)
APPLIED RES LAB Inc
Applied Research Laboratories Inc
Original Assignee
APPLIED RES LAB Inc
Applied Research Laboratories Inc
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 APPLIED RES LAB Inc, Applied Research Laboratories Inc filed Critical APPLIED RES LAB Inc
Publication of GB1261596A publication Critical patent/GB1261596A/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
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
    • G01N21/66—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light electrically excited, e.g. electroluminescence
    • G01N21/67—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light electrically excited, e.g. electroluminescence using electric arcs or discharges
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
    • G01N21/71—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light thermally excited
    • G01N21/73—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light thermally excited using plasma burners or torches
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
    • H01J37/32—Gas-filled discharge tubes

Abstract

1,261,596. Discharge lamps. APPLIED RESEARCH LABORATORIES Inc. 16 June, 1969 [17 June, 1968], No. 30399/69. Heading H1D. Material to be analysed spectrochemically is injected through an inlet 24 into a gas flowing through a tube 26 along which an arc is maintained in a wall-stabilized state by dynamically cooling the tube. A working gas, e.g. argon is admitted through a port 16 to a chamber 10 having a window 14, e.g. of lithium fluoride and an outlet 12 cooled by liquid circulating in a passage 18 and serving as an anode between which and a cathode 30, e.g. a wire of 99% tungsten-1% thorium alloy, a wall-stabilized arc is maintained along the tube 26 which is cooled by liquid in a passage 27. The inlet 24 opens into a passage 22 in an insulating disc 20, e.g. of boron nitride. The material to be analysed may be a gas or submicron particles entrained in a carrier gas such as argon. An exhaust port 36 is provided. The arc may be struck by a high-voltage pulse or by a movable auxiliary electrode (not shown). In a modified arrangement (Fig. 2, not shown) for absorption analysis the passage 26 is extended to a second chamber similar to the chamber 10. A light source is mounted internally or externally of this second chamber.
GB30399/69A 1968-06-17 1969-06-16 Capillary arc plasma source for and method of spectrochemical analysis Expired GB1261596A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US73763368A 1968-06-17 1968-06-17

Publications (1)

Publication Number Publication Date
GB1261596A true GB1261596A (en) 1972-01-26

Family

ID=24964656

Family Applications (1)

Application Number Title Priority Date Filing Date
GB30399/69A Expired GB1261596A (en) 1968-06-17 1969-06-16 Capillary arc plasma source for and method of spectrochemical analysis

Country Status (5)

Country Link
US (1) US3685911A (en)
JP (1) JPS5144430B1 (en)
DE (1) DE1929429C3 (en)
FR (1) FR2011101A1 (en)
GB (1) GB1261596A (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54161219U (en) * 1978-05-01 1979-11-10
JPS54171925U (en) * 1978-05-22 1979-12-05
DE3405075A1 (en) * 1984-02-13 1985-08-14 Siemens AG, 1000 Berlin und 8000 München DEVICE FOR ATOMIC SPECTROSCOPY OF AN ANALYSIS SUBSTANCE
US4789783A (en) * 1987-04-02 1988-12-06 Cook Robert D Discharge ionization detector
DE3817502A1 (en) * 1987-05-22 1988-12-08 Palitex Project Co Gmbh Method for operating yarn-processing devices
US4965540A (en) * 1987-12-23 1990-10-23 Hewlett-Packard Company Microwave resonant cavity
CA2001237A1 (en) * 1988-10-27 1990-04-27 Nathan E. Ballou Hollow electrode plasma excitation source
US5105123A (en) * 1988-10-27 1992-04-14 Battelle Memorial Institute Hollow electrode plasma excitation source
US5353113A (en) * 1993-07-15 1994-10-04 Cetac Technologies Incorporated Single and multiple radiation transparent afterglow electric discharge detector systems
US5382804A (en) * 1993-07-15 1995-01-17 Cetac Technologies Inc. Compact photoinization systems
AT406527B (en) * 1997-03-04 2000-06-26 Bernhard Dr Platzer DEVICE FOR ANALYZING GASEOUS SAMPLES

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL6403239A (en) * 1964-03-26 1965-09-27
US3512030A (en) * 1967-06-16 1970-05-12 Vitro Corp Of America High intensity source of selected radiation

Also Published As

Publication number Publication date
FR2011101A1 (en) 1970-02-27
DE1929429C3 (en) 1978-06-29
US3685911A (en) 1972-08-22
JPS5144430B1 (en) 1976-11-29
DE1929429B2 (en) 1977-11-10
DE1929429A1 (en) 1969-12-18

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