GB1253150A - - Google Patents
Info
- Publication number
- GB1253150A GB1253150A GB1253150DA GB1253150A GB 1253150 A GB1253150 A GB 1253150A GB 1253150D A GB1253150D A GB 1253150DA GB 1253150 A GB1253150 A GB 1253150A
- Authority
- GB
- United Kingdom
- Prior art keywords
- substance
- gas
- mass spectrometer
- mass
- analysed
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J49/00—Particle spectrometers or separator tubes
- H01J49/02—Details
- H01J49/04—Arrangements for introducing or extracting samples to be analysed, e.g. vacuum locks; Arrangements for external adjustment of electron- or ion-optical components
- H01J49/0422—Arrangements for introducing or extracting samples to be analysed, e.g. vacuum locks; Arrangements for external adjustment of electron- or ion-optical components for gaseous samples
Abstract
1,253,150. Mass spectrometers. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 9 June, 1970 [20 June, 1969], No. 31411/69. Heading H1D. [Also in Division G6] A method of mass spectrometric analysis of a substance comprises the steps of dissolving the substance in a gas whose pressure and temperature are such that the gas behaves as a liquid, forming a beam of the dissolved substance from the solution of the substance in the gas, ionizing said beam and causing said ionized beam to enter a mass spectrometer to be analysed therein. A sample to be analysed is dissolved in a chamber 10 in a gas provided by a source 12, e.g. a compressor or cylinder, and passes through a valve 14 to a beam forming means 16 and a slit system 30 before being ionized, e.g. by an electron or photon beam, and admitted to a mass spectrometer (not shown) which is preferably of the type having a scanned magnetic analyser. The beam forming means 16 comprises nozzles 18 and 20 preferably arranged as a Kantrowitz nozzle-skimmer system which removes lighter gas molecules for evacuation through an outlet 28 thereby increasing the proportion of substance in the gas/substance mixture. The slit system 30 comprises two apertured plates 32, 34 and outlets 36 and 38 for differential evacuation to enable the mass spectrometer to be maintained at a pressure of 10<SP>-5</SP> torr or less.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3141169 | 1969-06-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1253150A true GB1253150A (en) | 1971-11-10 |
Family
ID=10322717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1253150D Expired GB1253150A (en) | 1969-06-20 | 1969-06-20 |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1253150A (en) |
-
1969
- 1969-06-20 GB GB1253150D patent/GB1253150A/en not_active Expired
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |