GB1410242A - Atomic vapour sources - Google Patents
Atomic vapour sourcesInfo
- Publication number
- GB1410242A GB1410242A GB4867172A GB4867172A GB1410242A GB 1410242 A GB1410242 A GB 1410242A GB 4867172 A GB4867172 A GB 4867172A GB 4867172 A GB4867172 A GB 4867172A GB 1410242 A GB1410242 A GB 1410242A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pillars
- chamber
- carbon rod
- rod
- apertures
- 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
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 4
- 229910052799 carbon Inorganic materials 0.000 abstract 4
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 abstract 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract 2
- 238000010438 heat treatment Methods 0.000 abstract 2
- 239000002184 metal Substances 0.000 abstract 2
- 238000010521 absorption reaction Methods 0.000 abstract 1
- 229910052786 argon Inorganic materials 0.000 abstract 1
- 239000011324 bead Substances 0.000 abstract 1
- 239000012141 concentrate Substances 0.000 abstract 1
- 239000002826 coolant Substances 0.000 abstract 1
- 239000011521 glass Substances 0.000 abstract 1
- 239000011261 inert gas Substances 0.000 abstract 1
- 238000005259 measurement Methods 0.000 abstract 1
- 229910052757 nitrogen Inorganic materials 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
- G01N21/74—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 flameless atomising, e.g. graphite furnaces
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Geology (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Sampling And Sample Adjustment (AREA)
- Devices For Use In Laboratory Experiments (AREA)
Abstract
1410242 Resistance heating SHANDON SOUTHERN INSTRUMENTS Ltd 19 Sept 1973 [23 Oct 1972] 48671/72 Heading H5H In an atomic vapour source comprising a carbon rod resistance heating element 18 clamped between current suppling, upstanding metal pillars 11 which are clamped between and insulated from metal plates 13 which define with the pillars a chamber, the ends of the pillars 11 clamping the carbon rod 18 are free to move relative to one another to accommodate thermal expansion of the rod 18. The lower ends of the pillars 11 are fixed to an insulating cross bar 12 which is flexible to permit movement of the upper ends of the pillars 11. A bolt 14<1> clamps plates 13 intervening P.T.F.E. strips 14 and pillars 11 together to form the chamber. The pillars 11 have slits 17 communicating with horizontal bores which take the ends of carbon rod 18, screws 19 providing the necessary clamping pressure. The pillars have coolant passages 23 interconnected by a conduit 24. A mask 27 pivoted to side plates at 28 is adjustable against a biasing spring 35 to align one or other of its different sized apertures 30, 31 with apertures 32 in side plates 13. Inert gas, e.g. argon or nitrogen is introduced to the chamber, where it may be diffused by glass beads or a mesh arrangement, by a conduit 22. A vented cover 33 closes the chamber. Apertures 34 provided in the ends of pillars 11 permit atomic absorption measurements to be made along the direction of the rod 18 in addition to transversely of it. The carbon rod (Fig. 2) has a sample cavity 19<1>, which may be elongated (Fig. 3, not shown), between two undercut sections 20, which serve to concentrate heat around the cavity. Reference has been directed by the Comptroller to Specification 1,312,970.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4867172A GB1410242A (en) | 1972-10-23 | 1972-10-23 | Atomic vapour sources |
| US403115A US3873205A (en) | 1972-10-23 | 1973-10-03 | Assembly for use in atomic absorption spectroscopy |
| DE19732350055 DE2350055A1 (en) | 1972-10-23 | 1973-10-05 | DEVICE FOR GENERATING ATOMIC STEAM |
| IT29868/73A IT995678B (en) | 1972-10-23 | 1973-10-08 | ATOMIC VAPOR GENERATOR DEVICE PARTICULARLY FOR ANALS SPECTROSCOPIC |
| FR7337776A FR2203973B3 (en) | 1972-10-23 | 1973-10-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4867172A GB1410242A (en) | 1972-10-23 | 1972-10-23 | Atomic vapour sources |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1410242A true GB1410242A (en) | 1975-10-15 |
Family
ID=10449490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4867172A Expired GB1410242A (en) | 1972-10-23 | 1972-10-23 | Atomic vapour sources |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3873205A (en) |
| DE (1) | DE2350055A1 (en) |
| FR (1) | FR2203973B3 (en) |
| GB (1) | GB1410242A (en) |
| IT (1) | IT995678B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3957374A (en) * | 1974-02-01 | 1976-05-18 | Carl Zeiss-Stiftung | Apparatus for obtaining samples of dusts for analysis by spectrochemical examination |
| DE3427995A1 (en) * | 1984-07-28 | 1986-01-30 | Philips Patentverwaltung Gmbh, 2000 Hamburg | HEATING DEVICE FOR ATOMIC ABSORPTION SPECTROMETER |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL168331C (en) * | 1970-02-11 | 1982-03-16 | Bodenseewerk Perkin Elmer Co | GRAPHITE TUBE CUVETTE FOR AN ATOMIC ABSORPTION SPECTROMETER. |
-
1972
- 1972-10-23 GB GB4867172A patent/GB1410242A/en not_active Expired
-
1973
- 1973-10-03 US US403115A patent/US3873205A/en not_active Expired - Lifetime
- 1973-10-05 DE DE19732350055 patent/DE2350055A1/en not_active Withdrawn
- 1973-10-08 IT IT29868/73A patent/IT995678B/en active
- 1973-10-23 FR FR7337776A patent/FR2203973B3/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US3873205A (en) | 1975-03-25 |
| DE2350055A1 (en) | 1974-05-09 |
| FR2203973B3 (en) | 1976-09-17 |
| FR2203973A1 (en) | 1974-05-17 |
| IT995678B (en) | 1975-11-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PLE | Entries relating assignments, transmissions, licences in the register of patents | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |