FR2408136A1 - Determining effects of different analysis reactive agents - utilises focussing of luminous beam for measurement of optical density - Google Patents

Determining effects of different analysis reactive agents - utilises focussing of luminous beam for measurement of optical density

Info

Publication number
FR2408136A1
FR2408136A1 FR7733840A FR7733840A FR2408136A1 FR 2408136 A1 FR2408136 A1 FR 2408136A1 FR 7733840 A FR7733840 A FR 7733840A FR 7733840 A FR7733840 A FR 7733840A FR 2408136 A1 FR2408136 A1 FR 2408136A1
Authority
FR
France
Prior art keywords
samples
focussing
measurement
optical density
reactive agents
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.)
Granted
Application number
FR7733840A
Other languages
French (fr)
Other versions
FR2408136B1 (en
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR7733840A priority Critical patent/FR2408136A1/en
Publication of FR2408136A1 publication Critical patent/FR2408136A1/en
Application granted granted Critical
Publication of FR2408136B1 publication Critical patent/FR2408136B1/fr
Granted 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
    • G01N21/251—Colorimeters; Construction thereof
    • G01N21/253—Colorimeters; Construction thereof for batch operation, i.e. multisample apparatus

Abstract

The measurement of optical density is performed to determine effects of different reactive agents and analysis products on biological and chemical samples. By focussing luminous beam a reduced sample size is employed. Samples are housed in cylindrical holes (2) in transparent plastic plate (3). The optical system comprises luminous source (4) with lens (5) to focus beam onto samples. A plate (6) has circular hole (7) slightly smaller than diameter of sample container. After passing through sample the light traverses interference filter (8) prioe to detection (9). A recorder records light density on paper in sync. with movement of plate containing samples.
FR7733840A 1977-11-04 1977-11-04 Determining effects of different analysis reactive agents - utilises focussing of luminous beam for measurement of optical density Granted FR2408136A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7733840A FR2408136A1 (en) 1977-11-04 1977-11-04 Determining effects of different analysis reactive agents - utilises focussing of luminous beam for measurement of optical density

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7733840A FR2408136A1 (en) 1977-11-04 1977-11-04 Determining effects of different analysis reactive agents - utilises focussing of luminous beam for measurement of optical density

Publications (2)

Publication Number Publication Date
FR2408136A1 true FR2408136A1 (en) 1979-06-01
FR2408136B1 FR2408136B1 (en) 1981-03-27

Family

ID=9197466

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7733840A Granted FR2408136A1 (en) 1977-11-04 1977-11-04 Determining effects of different analysis reactive agents - utilises focussing of luminous beam for measurement of optical density

Country Status (1)

Country Link
FR (1) FR2408136A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2495781A1 (en) * 1980-12-10 1982-06-11 Becton Dickinson Co APPARATUS FOR ANALYZING AND EVALUATING TESTS CARRIED OUT IN SEVERAL ALVEOLES OF A TRAY
WO1983001111A1 (en) * 1981-09-21 1983-03-31 Virnes, Martti Apparatus for the measurement of fluorescence
EP0193385A2 (en) * 1985-02-27 1986-09-03 Sherwood Medical Company Automated microbiological testing appparatus and method

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3773426A (en) * 1972-02-22 1973-11-20 Department Of Health Educ Welf Bacterial growth detector
US3924948A (en) * 1973-12-17 1975-12-09 Kontes Glass Co Densitometer for use in quantitative thin layer chromatographic analysis
US4004150A (en) * 1975-05-01 1977-01-18 Samuel Natelson Analytical multiple component readout system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3773426A (en) * 1972-02-22 1973-11-20 Department Of Health Educ Welf Bacterial growth detector
US3924948A (en) * 1973-12-17 1975-12-09 Kontes Glass Co Densitometer for use in quantitative thin layer chromatographic analysis
US4004150A (en) * 1975-05-01 1977-01-18 Samuel Natelson Analytical multiple component readout system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2495781A1 (en) * 1980-12-10 1982-06-11 Becton Dickinson Co APPARATUS FOR ANALYZING AND EVALUATING TESTS CARRIED OUT IN SEVERAL ALVEOLES OF A TRAY
WO1983001111A1 (en) * 1981-09-21 1983-03-31 Virnes, Martti Apparatus for the measurement of fluorescence
EP0193385A2 (en) * 1985-02-27 1986-09-03 Sherwood Medical Company Automated microbiological testing appparatus and method
EP0193385A3 (en) * 1985-02-27 1988-06-08 Sherwood Medical Company Automated microbiological testing appparatus and method

Also Published As

Publication number Publication date
FR2408136B1 (en) 1981-03-27

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