GB1441068A - Illumination system for a sepctrophotometer - Google Patents

Illumination system for a sepctrophotometer

Info

Publication number
GB1441068A
GB1441068A GB1672574A GB1672574A GB1441068A GB 1441068 A GB1441068 A GB 1441068A GB 1672574 A GB1672574 A GB 1672574A GB 1672574 A GB1672574 A GB 1672574A GB 1441068 A GB1441068 A GB 1441068A
Authority
GB
United Kingdom
Prior art keywords
source
radiation
cathode
anode
spectrophotometer
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
GB1672574A
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.)
Beckman Instruments GmbH
Original Assignee
Beckman Instruments GmbH
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
Priority claimed from DE19732327752 external-priority patent/DE2327752C3/en
Application filed by Beckman Instruments GmbH filed Critical Beckman Instruments GmbH
Publication of GB1441068A publication Critical patent/GB1441068A/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
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G01N21/3103—Atomic absorption analysis

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)

Abstract

1441068 Lamps; systems of lighting BECKMAN INSTRUMENTS GmbH 17 April 1974 [30 May 1973] 16725/74 Heading F4R [Also in Division H1] An illumination system for an atomic absorption spectrophotometer comprises a primary radiation source 2 producing a line spectrum radiation which includes the resonance wavelength or wavelengths of the element or elements to be detected, an auxiliary radiation source 10 producing a continuum of radiation which includes the resonance wavelength or wavelengths and is broad in comparison with the width of the line spectrum radiation of the primary source, and means for energizing the two sources alternately, the sources being mounted on a common optical axis 1 so that radiation from the primary source reaches the spectrophotometer through the auxiliary source. In the preferred embodiment the source 2 is a conventional hollow cathode discharge lamp having a cathode 6 incorporating the element or elements to be detected, a hollow anode 7, a quartz window 3 and a filling of a protective gas such as helium, argon or neon. The source 10 comprises a hollow cylindrical anode 12 with its axis perpendicular to the axis 1, a U-shaped cathode 13, a screen electrode 14 which surrounds the anode and cathode and is connected electrically to the cathode, and a filling gas such as deuterium. Aligned apertures are formed in the anode 12 and screen 14 for the passage of radiation from the source 2, a lens 20 being provided to focus this radiation at the emission centre 17 of the source 10. A further lens 19 serves as the input condenser of the spectrophotometer.
GB1672574A 1973-05-30 1974-04-17 Illumination system for a sepctrophotometer Expired GB1441068A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19732327752 DE2327752C3 (en) 1973-05-30 Illumination system for an atomic absorption spectrophotometer

Publications (1)

Publication Number Publication Date
GB1441068A true GB1441068A (en) 1976-06-30

Family

ID=5882669

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1672574A Expired GB1441068A (en) 1973-05-30 1974-04-17 Illumination system for a sepctrophotometer

Country Status (3)

Country Link
JP (1) JPS5036192A (en)
FR (1) FR2231957B1 (en)
GB (1) GB1441068A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106855505A (en) * 2016-12-29 2017-06-16 山东非金属材料研究所 A kind of hollow cathode test device and method of testing

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106855505A (en) * 2016-12-29 2017-06-16 山东非金属材料研究所 A kind of hollow cathode test device and method of testing
CN106855505B (en) * 2016-12-29 2023-07-21 山东非金属材料研究所 Hollow cathode lamp testing device and testing method

Also Published As

Publication number Publication date
AU6962474A (en) 1975-12-04
JPS5036192A (en) 1975-04-05
FR2231957B1 (en) 1977-09-30
DE2327752B2 (en) 1976-10-14
FR2231957A1 (en) 1974-12-27
DE2327752A1 (en) 1974-12-05

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Legal Events

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