FR2343247A1 - Flame photometer for detecting contaminants in oxygen-contg. gases - with metallic element, detecting cpds. not giving direct reaction - Google Patents
Flame photometer for detecting contaminants in oxygen-contg. gases - with metallic element, detecting cpds. not giving direct reactionInfo
- Publication number
- FR2343247A1 FR2343247A1 FR7606071A FR7606071A FR2343247A1 FR 2343247 A1 FR2343247 A1 FR 2343247A1 FR 7606071 A FR7606071 A FR 7606071A FR 7606071 A FR7606071 A FR 7606071A FR 2343247 A1 FR2343247 A1 FR 2343247A1
- Authority
- FR
- France
- Prior art keywords
- flame
- oxygen
- contg
- detecting
- stage
- 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
Links
- 239000007789 gas Substances 0.000 title abstract 4
- 239000000356 contaminant Substances 0.000 title abstract 2
- 229910052751 metal Inorganic materials 0.000 title abstract 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 abstract 2
- 239000001257 hydrogen Substances 0.000 abstract 2
- 229910052739 hydrogen Inorganic materials 0.000 abstract 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 abstract 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 1
- 229910052801 chlorine Inorganic materials 0.000 abstract 1
- 239000000460 chlorine Substances 0.000 abstract 1
- 238000001514 detection method Methods 0.000 abstract 1
- 230000005284 excitation Effects 0.000 abstract 1
- 239000011521 glass Substances 0.000 abstract 1
- 229910052736 halogen Inorganic materials 0.000 abstract 1
- 150000002367 halogens Chemical class 0.000 abstract 1
- 239000001301 oxygen Substances 0.000 abstract 1
- 229910052760 oxygen Inorganic materials 0.000 abstract 1
- 230000005855 radiation Effects 0.000 abstract 1
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
- G01N21/71—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
- 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)
- Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)
- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
Abstract
A flame photometer detects contaminants in an oxygen-contg. gas, incorporating a burner and an analysis system. The burner is housed in a space into which hydrogen is passed and reacts in two stages with the oxygen-contg. gas, which is circulated by a pump. The analysis unit incorporates a photomultiplier which sees, through an interferential filter, the flame produced in a refractory glass sleeve, at the first stage, i.e. when hydrogen is in excess in relation to the oxygen in the gas. The flame comes into contact with a metallic element able to react in the flame to form a volatile cpd. The volatile cpd. emits a luminous radiation, by thermal excitation in the first or second stage flame, which is easily detected. The invention enlarges the possibilities of the detection appts. compared to existing appts. in which the flame produced at the first stage is used to detect atoms. or molecules which gives a direct luminous reaction. The invention uses either the first or second stage flame, to detect elements, e.g. chlorine and other halogens, which do not give a direct reaction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7606071A FR2343247A1 (en) | 1976-03-04 | 1976-03-04 | Flame photometer for detecting contaminants in oxygen-contg. gases - with metallic element, detecting cpds. not giving direct reaction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7606071A FR2343247A1 (en) | 1976-03-04 | 1976-03-04 | Flame photometer for detecting contaminants in oxygen-contg. gases - with metallic element, detecting cpds. not giving direct reaction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2343247A1 true FR2343247A1 (en) | 1977-09-30 |
| FR2343247B1 FR2343247B1 (en) | 1978-10-13 |
Family
ID=9169915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7606071A Granted FR2343247A1 (en) | 1976-03-04 | 1976-03-04 | Flame photometer for detecting contaminants in oxygen-contg. gases - with metallic element, detecting cpds. not giving direct reaction |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2343247A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2672996A1 (en) * | 1991-02-14 | 1992-08-21 | France Etat Armement | Portable and autonomous apparatus for the in situ analysis of a gaseous composition by flame spectrophotometry |
-
1976
- 1976-03-04 FR FR7606071A patent/FR2343247A1/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2672996A1 (en) * | 1991-02-14 | 1992-08-21 | France Etat Armement | Portable and autonomous apparatus for the in situ analysis of a gaseous composition by flame spectrophotometry |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2343247B1 (en) | 1978-10-13 |
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