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FR2374636A1 - Irradiation analysis of fluorescent material - includes measurement of simulated fluorescent radiation and integration over specified decay period - Google Patents

Irradiation analysis of fluorescent material - includes measurement of simulated fluorescent radiation and integration over specified decay period

Info

Publication number
FR2374636A1
FR2374636A1 FR7637695A FR7637695A FR2374636A1 FR 2374636 A1 FR2374636 A1 FR 2374636A1 FR 7637695 A FR7637695 A FR 7637695A FR 7637695 A FR7637695 A FR 7637695A FR 2374636 A1 FR2374636 A1 FR 2374636A1
Authority
FR
France
Prior art keywords
radiation
fluorescent
fluorescent emission
simulated
includes measurement
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
FR7637695A
Other languages
French (fr)
Other versions
FR2374636B1 (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.)
Block Engineering Inc
Original Assignee
Block Engineering 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 Block Engineering Inc filed Critical Block Engineering Inc
Priority to FR7637695A priority Critical patent/FR2374636A1/en
Publication of FR2374636A1 publication Critical patent/FR2374636A1/en
Application granted granted Critical
Publication of FR2374636B1 publication Critical patent/FR2374636B1/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
    • G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
    • G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
    • G01N21/64—Fluorescence; Phosphorescence
    • G01N21/6408—Fluorescence; Phosphorescence with measurement of decay time, time resolved fluorescence
    • 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
    • G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
    • G01N21/64—Fluorescence; Phosphorescence

Landscapes

  • Health & Medical Sciences (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Physics & Mathematics (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)
  • Analysing Materials By The Use Of Radiation (AREA)

Abstract

The material is irradiated with radiation of a wavelength to stimulate flourescence in the material and of a strength sufficient to bleach the material. Detectors pick up fluorescent emission produced during bleaching by the radiation and generate a signal with a parameter proportional to the instantaneous value of the intensity of fluorescent emission. The time interval required for the fluorescent emission to face to a predetermined fraction of its initial intensity is measured. The fluorescent emission signal is integrated over this time interval.
FR7637695A 1976-12-14 1976-12-14 Irradiation analysis of fluorescent material - includes measurement of simulated fluorescent radiation and integration over specified decay period Granted FR2374636A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7637695A FR2374636A1 (en) 1976-12-14 1976-12-14 Irradiation analysis of fluorescent material - includes measurement of simulated fluorescent radiation and integration over specified decay period

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7637695A FR2374636A1 (en) 1976-12-14 1976-12-14 Irradiation analysis of fluorescent material - includes measurement of simulated fluorescent radiation and integration over specified decay period

Publications (2)

Publication Number Publication Date
FR2374636A1 true FR2374636A1 (en) 1978-07-13
FR2374636B1 FR2374636B1 (en) 1980-07-04

Family

ID=9181063

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7637695A Granted FR2374636A1 (en) 1976-12-14 1976-12-14 Irradiation analysis of fluorescent material - includes measurement of simulated fluorescent radiation and integration over specified decay period

Country Status (1)

Country Link
FR (1) FR2374636A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3470373A (en) * 1966-10-18 1969-09-30 Litton Systems Inc Method for analysis and identification of biologic entities by phosphorescence
US3918812A (en) * 1973-05-07 1975-11-11 Us Energy Diagnoses of disease states by fluorescent measurements utilizing scanning laser beams
FR2282639A1 (en) * 1974-08-21 1976-03-19 Block Engineering PROCESS FOR DISTINGUISHING TINTED PARTICLES FROM THE BACKGROUND FLUORESCENCE OF THE COLORANT
DE2601190A1 (en) * 1975-01-21 1976-07-22 Perkin Elmer Ltd SIGNAL PROCESSING CIRCUIT FOR SIGNALS CAUSED BY RADIATION

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3470373A (en) * 1966-10-18 1969-09-30 Litton Systems Inc Method for analysis and identification of biologic entities by phosphorescence
US3918812A (en) * 1973-05-07 1975-11-11 Us Energy Diagnoses of disease states by fluorescent measurements utilizing scanning laser beams
FR2282639A1 (en) * 1974-08-21 1976-03-19 Block Engineering PROCESS FOR DISTINGUISHING TINTED PARTICLES FROM THE BACKGROUND FLUORESCENCE OF THE COLORANT
DE2601190A1 (en) * 1975-01-21 1976-07-22 Perkin Elmer Ltd SIGNAL PROCESSING CIRCUIT FOR SIGNALS CAUSED BY RADIATION

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
NV266B/73 *
NV266B/78 *
NV8056/76 *

Also Published As

Publication number Publication date
FR2374636B1 (en) 1980-07-04

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Legal Events

Date Code Title Description
ST Notification of lapse