GB1294853A - - Google Patents
Info
- Publication number
- GB1294853A GB1294853A GB1294853DA GB1294853A GB 1294853 A GB1294853 A GB 1294853A GB 1294853D A GB1294853D A GB 1294853DA GB 1294853 A GB1294853 A GB 1294853A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sample
- ionization
- gas
- inert gas
- detector
- 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
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/62—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode
- G01N27/64—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode using wave or particle radiation to ionise a gas, e.g. in an ionisation chamber
- G01N27/66—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode using wave or particle radiation to ionise a gas, e.g. in an ionisation chamber and measuring current or voltage
Abstract
1294853 Ionization gas analysis DEFENCE SECRETARY OF STATE FOR 5 Jan 1970 [3 Oct 1968] 46905/68 Heading G1N [Also in Division H1] A gas or vapour sample is analysed by mixing the sample with a pure inert gas having an ionization potential greater than or equal to the ionization potential of the sample, exciting, by means of a radio-active source, the mixture at a pressure between 5 and 40 torr to ionize at least a proportion of the sample, and comparing the resulting ionization current with the current resulting under the same excitation conditions in a stream of the inert gas alone. As shown, the rare gas and sample enter through inlet 3 from which it is passed through a detector 6 having a cathode 7, an anode 9, and a radio-active source 16. The detector is surrounded by a vacuum sealed casing 1. The pressure is maintained within the limits by a pump connected to the outlet 4. In Fig. 2 (not shown), a purified inert gas is first passed through a chromatographic column and thence to the detector 6 and the ionization current is measured. The gas sample is then injected into the inert gas stream upstream of the chromatographic column and the resulting ionization currents measured.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4690568 | 1968-10-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1294853A true GB1294853A (en) | 1972-11-01 |
Family
ID=10443019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1294853D Expired GB1294853A (en) | 1968-10-03 | 1968-10-03 |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1294853A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2543995A1 (en) * | 2011-07-06 | 2013-01-09 | SRI Instruments Europe GmbH | Helium ionization detector |
| CN113430550A (en) * | 2021-02-24 | 2021-09-24 | 中国地质科学院水文地质环境地质研究所 | Electrolytic cell adopting stainless steel capillary to exhaust |
-
1968
- 1968-10-03 GB GB1294853D patent/GB1294853A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2543995A1 (en) * | 2011-07-06 | 2013-01-09 | SRI Instruments Europe GmbH | Helium ionization detector |
| CN113430550A (en) * | 2021-02-24 | 2021-09-24 | 中国地质科学院水文地质环境地质研究所 | Electrolytic cell adopting stainless steel capillary to exhaust |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |