GB930744A - Method and apparatus for determining vapour pressures - Google Patents
Method and apparatus for determining vapour pressuresInfo
- Publication number
- GB930744A GB930744A GB221862A GB221862A GB930744A GB 930744 A GB930744 A GB 930744A GB 221862 A GB221862 A GB 221862A GB 221862 A GB221862 A GB 221862A GB 930744 A GB930744 A GB 930744A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sample
- chamber
- measured
- vapour pressure
- stream
- 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
- G01N27/626—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 heat to ionise a gas
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
Abstract
930,744. Determining vapour pressure. BRITISH PETROLEUM CO. Ltd., A. J. GROSZEK, and G. H. BELL. Jan. 22, 1962, No. 2218/62. Class 106 (2). The (low) vapour pressure of an organic sample is measured by passing a stream of inert gas, such as nitrogen, through a temperaturecontrolled chamber 10 containing the sample, then adding hydrogen through valve 18 and burning the mixture in a flame ionization detector comprising a platinum jet 16 and collector 17, the carbon-ion conductivity of the flame path between which is measured by means of a current measuring unit 22 and recorded by a pen-recorder 23. The rate of evaporation of the sample in chamber 10 may be increased by packing the chamber with sand wetted by the sample to give a large area of contact with the nitrogen stream. The apparatus may be calibrated using a standard sample of known carbon number given by mass spectrograph analysis, or of known molecular weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB221862A GB930744A (en) | 1962-01-22 | 1962-01-22 | Method and apparatus for determining vapour pressures |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB221862A GB930744A (en) | 1962-01-22 | 1962-01-22 | Method and apparatus for determining vapour pressures |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB930744A true GB930744A (en) | 1963-07-10 |
Family
ID=9735678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB221862A Expired GB930744A (en) | 1962-01-22 | 1962-01-22 | Method and apparatus for determining vapour pressures |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB930744A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105355536A (en) * | 2015-07-24 | 2016-02-24 | 中国科学院上海有机化学研究所 | Ionization method and ionization device |
-
1962
- 1962-01-22 GB GB221862A patent/GB930744A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105355536A (en) * | 2015-07-24 | 2016-02-24 | 中国科学院上海有机化学研究所 | Ionization method and ionization device |
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