FR2422946A1 - Laser analysis of chemical and pharmaceutical prods. - incorporates modulation of laser ray, passing of modulated ray through prod. and determn. of effects - Google Patents

Laser analysis of chemical and pharmaceutical prods. - incorporates modulation of laser ray, passing of modulated ray through prod. and determn. of effects

Info

Publication number
FR2422946A1
FR2422946A1 FR7810588A FR7810588A FR2422946A1 FR 2422946 A1 FR2422946 A1 FR 2422946A1 FR 7810588 A FR7810588 A FR 7810588A FR 7810588 A FR7810588 A FR 7810588A FR 2422946 A1 FR2422946 A1 FR 2422946A1
Authority
FR
France
Prior art keywords
ray
laser
prod
chemical
effects
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.)
Withdrawn
Application number
FR7810588A
Other languages
French (fr)
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.)
MORAND CHRISTIAN
Original Assignee
MORAND CHRISTIAN
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 MORAND CHRISTIAN filed Critical MORAND CHRISTIAN
Priority to FR7810588A priority Critical patent/FR2422946A1/en
Publication of FR2422946A1 publication Critical patent/FR2422946A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
    • G01N23/22—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by measuring secondary emission from the material
    • G01N23/227—Measuring photoelectric effect, e.g. photoelectron emission microscopy [PEEM]
    • 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
    • G01N21/65—Raman scattering

Landscapes

  • Health & Medical Sciences (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)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Investigating Or Analysing Biological Materials (AREA)

Abstract

A process and an appts. for analysing chemical and pharmaceutical prods. incorporates modulation of a laser ray according to fixed frequencies in terms of the different components in the prod. to be analysed. The modulated ray is then made to pass through the prod. and the characteristic frequency of the component excited by the fixed frequency is detected. The amplitude of the different phenomena ude to the corollary effects of the excitation by the modulated ray is measured. The process is simple and rapidly carried out. It is readily adaptable to all problems of chemical analysis.
FR7810588A 1978-04-11 1978-04-11 Laser analysis of chemical and pharmaceutical prods. - incorporates modulation of laser ray, passing of modulated ray through prod. and determn. of effects Withdrawn FR2422946A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7810588A FR2422946A1 (en) 1978-04-11 1978-04-11 Laser analysis of chemical and pharmaceutical prods. - incorporates modulation of laser ray, passing of modulated ray through prod. and determn. of effects

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7810588A FR2422946A1 (en) 1978-04-11 1978-04-11 Laser analysis of chemical and pharmaceutical prods. - incorporates modulation of laser ray, passing of modulated ray through prod. and determn. of effects

Publications (1)

Publication Number Publication Date
FR2422946A1 true FR2422946A1 (en) 1979-11-09

Family

ID=9206932

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7810588A Withdrawn FR2422946A1 (en) 1978-04-11 1978-04-11 Laser analysis of chemical and pharmaceutical prods. - incorporates modulation of laser ray, passing of modulated ray through prod. and determn. of effects

Country Status (1)

Country Link
FR (1) FR2422946A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0056426A2 (en) * 1980-10-08 1982-07-28 Firma Carl Zeiss Device for the presentation of parameters of a sample
EP0163291A2 (en) * 1984-05-30 1985-12-04 Photo Acoustic Technology, Inc. Apparatus and technique for monitoring photoelectron emission from surfaces

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0056426A2 (en) * 1980-10-08 1982-07-28 Firma Carl Zeiss Device for the presentation of parameters of a sample
EP0056426A3 (en) * 1980-10-08 1983-05-25 Firma Carl Zeiss Method and device for the spatial presentation of parameters of a sample using light-induced scanning microscopy
EP0163291A2 (en) * 1984-05-30 1985-12-04 Photo Acoustic Technology, Inc. Apparatus and technique for monitoring photoelectron emission from surfaces
EP0163291A3 (en) * 1984-05-30 1987-03-25 Photo Acoustic Technology, Inc. Apparatus and technique for monitoring photoelectron emission from surfaces

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Legal Events

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