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 effectsInfo
- 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- Withdrawn
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.
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)
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 |
-
1978
- 1978-04-11 FR FR7810588A patent/FR2422946A1/en not_active Withdrawn
Cited By (4)
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
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |