GB1180362A - Method of Determining the Concentration of an Element - Google Patents
Method of Determining the Concentration of an ElementInfo
- Publication number
- GB1180362A GB1180362A GB2924268A GB2924268A GB1180362A GB 1180362 A GB1180362 A GB 1180362A GB 2924268 A GB2924268 A GB 2924268A GB 2924268 A GB2924268 A GB 2924268A GB 1180362 A GB1180362 A GB 1180362A
- Authority
- GB
- United Kingdom
- Prior art keywords
- flame
- concentration
- determining
- radiation
- june
- 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
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
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/3103—Atomic absorption analysis
-
- 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
- G01N21/71—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light thermally excited
- G01N21/72—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light thermally excited using flame burners
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Biochemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
Abstract
1,180,362. Radiation absorption flame analysis. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. June 19, 1968 [June 22, 1967], No. 29242/68. Heading G1A. In a method and apparatus for determining the concentration of an element by introducing it in its vapour state into a flame, and measuring the absorption by the flame of electromagnet radiation of a characteristic wavelength, the flame is burnt in an atmosphere having a pressure less than atmospheric and preferably less than 1 cm of mercury. The burner may be a slit burner and the radiation beam may be passed many times through the flame by a system of confocally arranged mirrors. A pre-mixed or diffusion flame may be used, and the low pressure may be achieved by a vacuum chamber and a pump. A lamp emitting light at the characteristic frequency of a single line may be used, or a lamp emitting a continuous spectrum may be used to simultaneously determine the concentration of a number of elements. Determining the concentration of iron in an iron carbonyl solution in benzene is exemplified.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL6708682A NL6708682A (en) | 1967-06-22 | 1967-06-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1180362A true GB1180362A (en) | 1970-02-04 |
Family
ID=19800511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2924268A Expired GB1180362A (en) | 1967-06-22 | 1968-06-19 | Method of Determining the Concentration of an Element |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JPS503672B1 (en) |
| DE (1) | DE1773544A1 (en) |
| FR (1) | FR1571058A (en) |
| GB (1) | GB1180362A (en) |
| NL (1) | NL6708682A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5210056A (en) * | 1975-07-14 | 1977-01-26 | Seikosha Co Ltd | Quartz oscillator |
| DE2906536C2 (en) * | 1979-02-20 | 1985-09-26 | Institut chimičeskoj fiziki Akademii Nauk SSSR, Moskau/Moskva | Multiple reflection optical system |
| FR2511507A1 (en) * | 1981-08-13 | 1983-02-18 | Commissariat Energie Atomique | Opto-galvanic analyser for small concentrations in gas samples - uses two facing mirrors in analysed gas cavity to obtain multiple reflections of beam |
-
1967
- 1967-06-22 NL NL6708682A patent/NL6708682A/xx unknown
-
1968
- 1968-05-31 DE DE19681773544 patent/DE1773544A1/en active Pending
- 1968-06-19 GB GB2924268A patent/GB1180362A/en not_active Expired
- 1968-06-19 JP JP4201068A patent/JPS503672B1/ja active Pending
- 1968-06-24 FR FR1571058D patent/FR1571058A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS503672B1 (en) | 1975-02-07 |
| NL6708682A (en) | 1968-12-23 |
| DE1773544A1 (en) | 1971-11-18 |
| FR1571058A (en) | 1969-06-13 |
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