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GB1399050A - Graphite tube furnace - Google Patents

Graphite tube furnace

Info

Publication number
GB1399050A
GB1399050A GB3944073A GB3944073A GB1399050A GB 1399050 A GB1399050 A GB 1399050A GB 3944073 A GB3944073 A GB 3944073A GB 3944073 A GB3944073 A GB 3944073A GB 1399050 A GB1399050 A GB 1399050A
Authority
GB
United Kingdom
Prior art keywords
tube
furnace
heat sink
hole
heat sinks
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
GB3944073A
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Priority to GB3944073A priority Critical patent/GB1399050A/en
Priority to US474398A priority patent/US3893769A/en
Priority to FR7428542A priority patent/FR2241756A1/fr
Publication of GB1399050A publication Critical patent/GB1399050A/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
    • G01N21/71—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light thermally excited
    • G01N21/74—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 flameless atomising, e.g. graphite furnaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B17/00—Furnaces of a kind not covered by any of groups F27B1/00 - F27B15/00
    • F27B17/02—Furnaces of a kind not covered by any of groups F27B1/00 - F27B15/00 specially designed for laboratory use

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Biochemistry (AREA)
  • Geology (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Clinical Laboratory Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)

Abstract

1399050 Optical sample holders STANDARD TELEPHONES & CABLES Ltd 21 Aug 1973 39440/73 Heading G2J [Also in Division H5] An atomic absorption spectroscopy furnace comprises a graphite tube 1 each end of which is clamped in an electrically conductive heat sink 2, 3 by means of a tapered bush 9,10 pressed into a co-operating tapered hole in the heat sink by a clamping wheel 11, 12 in screw-threaded engagement with the heat sink, the furnace having an unobstructed path for the passage of light in the direction of the axis of the tube X Y X Y'. The graphite tube has a central region 7 of reduced wall thickness to increase the temperature in use in this region. A hole 8 permits insertion of a sample into the tube. The heat sinks have terminals 5 and cooling fluid inlets and outlets 6. Silica casing 17 extends between the heat sinks surrounding the tube 1 and has a tangential inlet for argon and a radial outlet 19 which in use, is aligned with hole 8 so that after sweeping air from the casing a pipette can be inserted to put a sample into the furnace. The pipette blocks the outlet so that argon sweeps air also from the inside of tube 1. Heat sinks 2, 3 are insulated electrically from supporting platform 4.
GB3944073A 1973-08-21 1973-08-21 Graphite tube furnace Expired GB1399050A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB3944073A GB1399050A (en) 1973-08-21 1973-08-21 Graphite tube furnace
US474398A US3893769A (en) 1973-08-21 1974-05-30 Graphite tube furnace
FR7428542A FR2241756A1 (en) 1973-08-21 1974-08-20

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3944073A GB1399050A (en) 1973-08-21 1973-08-21 Graphite tube furnace

Publications (1)

Publication Number Publication Date
GB1399050A true GB1399050A (en) 1975-06-25

Family

ID=10409561

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3944073A Expired GB1399050A (en) 1973-08-21 1973-08-21 Graphite tube furnace

Country Status (3)

Country Link
US (1) US3893769A (en)
FR (1) FR2241756A1 (en)
GB (1) GB1399050A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2152234A (en) * 1983-12-30 1985-07-31 Zeiss Jena Veb Carl Atomizer cuvette for use in flameless atomic absorption spectrometry

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL176305C (en) * 1974-03-25 1985-03-18 Philips Nv DEVICE FOR GENERATING FREE ATOMS OF A SUBSTANCE FOR THE ATOMIC SPECTROSCOPY.
GB1589386A (en) * 1976-08-02 1981-05-13 Unisearch Ltd Aerosol deposition in furnace atomization
US4361401A (en) * 1978-05-22 1982-11-30 Instrumentation Laboratory Inc. Automatic sample deposition in flameless analysis
US4407582A (en) * 1981-01-12 1983-10-04 The Research And Development Institute, Inc. At Montana State University Method and apparatus for reduction of matric interference in electrothermal atomizer for atomic absorption spectroscopy
DE3239253A1 (en) * 1982-10-23 1984-04-26 Philips Patentverwaltung Gmbh, 2000 Hamburg TUBE COVETTE FOR THE ATOMIC ABSORPTION SPECTROMETRY
KR20040076650A (en) * 2003-02-26 2004-09-03 삼성전자주식회사 Optical pick apparatus
SG2014011944A (en) 2005-08-30 2014-08-28 Advanced Tech Materials Boron ion implantation using alternative fluorinated boron precursors, and formation of large boron hydrides for implantation
CN102668016B (en) 2009-10-27 2016-02-24 安格斯公司 Ion implantation systems and methods
US8598022B2 (en) 2009-10-27 2013-12-03 Advanced Technology Materials, Inc. Isotopically-enriched boron-containing compounds, and methods of making and using same
GB2478134B (en) * 2010-02-25 2012-01-11 Micro Materials Ltd Heating in material testing apparatus
US10634466B2 (en) * 2018-02-01 2020-04-28 The United States Of America, As Represented By The Secretary Of The Navy Sealable short-pathlength liquid transmission cell for fourier-transform infrared spectroscopy applications

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7004574U (en) * 1970-02-11 1970-10-08 Bodenseewerk Perkin Elmer Co GRAPHITE TUBE CUVETTE.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2152234A (en) * 1983-12-30 1985-07-31 Zeiss Jena Veb Carl Atomizer cuvette for use in flameless atomic absorption spectrometry

Also Published As

Publication number Publication date
US3893769A (en) 1975-07-08
FR2241756A1 (en) 1975-03-21

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee