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GB1328734A - Method and means for photometrically evaluating light-absorbing zones in a thin layer of light-scattering material - Google Patents

Method and means for photometrically evaluating light-absorbing zones in a thin layer of light-scattering material

Info

Publication number
GB1328734A
GB1328734A GB4370071A GB4370071A GB1328734A GB 1328734 A GB1328734 A GB 1328734A GB 4370071 A GB4370071 A GB 4370071A GB 4370071 A GB4370071 A GB 4370071A GB 1328734 A GB1328734 A GB 1328734A
Authority
GB
United Kingdom
Prior art keywords
light
plate
reflected
transmitted
detectors
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
GB4370071A
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.)
Carl Zeiss AG
Original Assignee
Carl Zeiss AG
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 Carl Zeiss AG filed Critical Carl Zeiss AG
Publication of GB1328734A publication Critical patent/GB1328734A/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
    • G01N21/47—Scattering, i.e. diffuse reflection
    • 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
    • G01N21/255—Details, e.g. use of specially adapted sources, lighting or optical systems
    • 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
    • G01N21/47—Scattering, i.e. diffuse reflection
    • G01N21/4738—Diffuse reflection, e.g. also for testing fluids, fibrous materials
    • G01N21/474—Details of optical heads therefor, e.g. using optical fibres
    • 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
    • G01N21/59—Transmissivity
    • G01N21/5907—Densitometers
    • 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
    • G01N30/90—Plate chromatography, e.g. thin layer or paper chromatography
    • G01N30/95—Detectors specially adapted therefor; Signal analysis

Landscapes

  • Physics & Mathematics (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)
  • Spectroscopy & Molecular Physics (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)

Abstract

1328734 Photo-electric evaluation of thinlayer media CARL ZEISS-STIFTUNG (trading as CARL ZEISS) 20 Sept 1971 [30 Sept 1970j 43700/71 Heading G1A In the photo-electric evaluation of thin-layer media e.g. as used in chromatography, both reflectivity and transmissivity measurements are carried out simultaneously in such a way as to obtain measurements of the absorption due to the separated sample free from errors due to variations in the light scattering characteristics of the material of the thin-layer medium (the separating layer) itself, which occur when reflectivity measurements alone are used. In apparatus for reading a chromatogram, Fig.4, the plate 6 is fed through the beam of light from monochromotor 4, which irradiates the plate at normal incidence. The outputs of detectors 7, 8 monitoring diffusely reflected light and transmitted light respectively, are amplified (9 and 10) and summed at 11. The recorder 12 is controlled in synchronism with respective movement of the plate 6 and the optical system. Particular optical arrangements are described. In one, Fig.5 (not shown), integrating spheres with associated detectors are mounted on either side of the plate 6. In another, Fig. 6 (not shown) one fibre optic bundle leads light to the plate surface and two more lead reflected and transmitted light respectively, to respective detectors. The fibre optic arrangement can be modified so that a single detector can be used to sum the transmitted and reflected intensities, the end of the bundle conducting the transmitted intensity being combined at a common location with that conducting the reflected intensity.
GB4370071A 1970-09-30 1971-09-20 Method and means for photometrically evaluating light-absorbing zones in a thin layer of light-scattering material Expired GB1328734A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2047952A DE2047952C3 (en) 1970-09-30 1970-09-30 Process for the photometric evaluation of the zones resulting from the separation of substance mixtures in thin layers of light-scattering material

Publications (1)

Publication Number Publication Date
GB1328734A true GB1328734A (en) 1973-08-30

Family

ID=5783734

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4370071A Expired GB1328734A (en) 1970-09-30 1971-09-20 Method and means for photometrically evaluating light-absorbing zones in a thin layer of light-scattering material

Country Status (3)

Country Link
US (1) US3746869A (en)
DE (1) DE2047952C3 (en)
GB (1) GB1328734A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2119507A (en) * 1982-04-10 1983-11-16 Bruker Analytische Messtechnik Infrared spectrometer

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5123795A (en) * 1974-08-21 1976-02-25 Shimadzu Corp
US4012144A (en) * 1975-08-07 1977-03-15 Varian Associates Spectrosorptance measuring system and method
US4052615A (en) * 1976-07-30 1977-10-04 Industrial Nucleonics Corporation Spherical cavity method and apparatus for measuring a sheet material property using infrared radiation
US4120582A (en) * 1976-10-27 1978-10-17 Donnelly Mirrors, Inc. Light reflectivity and transmission testing apparatus and method
US4171909A (en) * 1977-03-25 1979-10-23 Miles Laboratories, Inc. Apparatus for measuring light intensities
DE2751365B2 (en) * 1977-11-17 1979-12-06 Diamant Test Gesellschaft Fuer Edelsteinpruefungen Mbh, 5000 Koeln Device for measuring the absorption of a sample
DE2757196C3 (en) * 1977-12-22 1981-11-26 Vladimir Dr.-Ing. 5100 Aachen Blazek Photometric arrangement
US4199260A (en) * 1978-08-21 1980-04-22 Technicon Instruments Corporation Apparatus and method for determining the concentration in a sample
DE3005923A1 (en) * 1980-02-16 1981-09-03 Compur-Electronic GmbH, 8000 München PHOTOMETRIC METHOD AND PHOTOMETRIC DEVICE FOR DETERMINING REACTION PROCESSES
JPS58162038A (en) * 1982-03-23 1983-09-26 Canon Inc Pattern defect detection apparatus
US4591271A (en) * 1983-03-21 1986-05-27 Byers Donald W Method and apparatus for coating detection and surface evaluation
JPS62270079A (en) * 1986-05-19 1987-11-24 Fuji Photo Film Co Ltd Case inspection method for floppy disk
JPS6332338A (en) * 1986-07-26 1988-02-12 Hitachi Ltd Optical property measuring device
US4937637A (en) * 1989-02-10 1990-06-26 Kollmorgen Corporation Dual reading head transmission/reflection densitometer
US5196906A (en) * 1990-06-29 1993-03-23 Tma Technologies, Inc. Modular scatterometer with interchangeable scanning heads
US5717216A (en) * 1996-10-16 1998-02-10 Reynolds Metals Company Thickness gauging using ultraviolet light absorption
DE19811150C2 (en) * 1998-03-14 2002-05-02 Bernd Spangenberg Thin-layer chromatography
DE102011077290A1 (en) 2011-06-09 2012-12-13 Carl Zeiss Microimaging Gmbh Measuring method and measuring device for determining transmission and / or reflection properties
US10197496B2 (en) * 2015-06-23 2019-02-05 Empire Technology Development Llc Real-time monitoring of material composition for quality control

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2632855A (en) * 1947-10-07 1953-03-24 Westinghouse Electric Corp Photoelectric speed control
US2718597A (en) * 1951-11-01 1955-09-20 Exxon Research Engineering Co Infrared analysis apparatus
US2834247A (en) * 1955-01-26 1958-05-13 Beckman Instruments Inc Optical density analyzing apparatus
US2930898A (en) * 1956-09-11 1960-03-29 W D Engineering Co Ltd Cathode ray tube apparatus for the inspection of articles
GB1024734A (en) * 1963-05-06 1966-04-06 British Petroleum Co Improvements relating to the detection of solid particles suspended in liquid
US3504978A (en) * 1965-02-04 1970-04-07 Shimadzu Corp Plural beam spectrophotometer with a diffusion plate between each cell and detector
US3504983A (en) * 1966-05-31 1970-04-07 Nasa Ellipsoidal mirror reflectometer including means for averaging the radiation reflected from the sample
US3567328A (en) * 1966-06-02 1971-03-02 Vernon T Riley Specimen transport mount for spectrophotometer
US3566083A (en) * 1967-10-16 1971-02-23 Measurement Research Center In Sensor for punches and marks
US3618061A (en) * 1969-04-30 1971-11-02 Eaton Yale & Towne Monitoring apparatus for monitoring the density of a material carried by a fluid and the flow of the fluid

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2119507A (en) * 1982-04-10 1983-11-16 Bruker Analytische Messtechnik Infrared spectrometer

Also Published As

Publication number Publication date
US3746869A (en) 1973-07-17
DE2047952C3 (en) 1973-10-18
DE2047952B2 (en) 1973-03-22
DE2047952A1 (en) 1972-04-06

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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