GB1026071A - Improvements in and relating to the determination of dissolved substances in water - Google Patents
Improvements in and relating to the determination of dissolved substances in waterInfo
- Publication number
- GB1026071A GB1026071A GB1745661A GB1745661A GB1026071A GB 1026071 A GB1026071 A GB 1026071A GB 1745661 A GB1745661 A GB 1745661A GB 1745661 A GB1745661 A GB 1745661A GB 1026071 A GB1026071 A GB 1026071A
- Authority
- GB
- United Kingdom
- Prior art keywords
- water
- tube
- sack
- plug
- thin
- 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
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/38—Diluting, dispersing or mixing samples
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/18—Water
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N7/00—Analysing materials by measuring the pressure or volume of a gas or vapour
- G01N7/10—Analysing materials by measuring the pressure or volume of a gas or vapour by allowing diffusion of components through a porous wall and measuring a pressure or volume difference
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N7/00—Analysing materials by measuring the pressure or volume of a gas or vapour
- G01N7/14—Analysing materials by measuring the pressure or volume of a gas or vapour by allowing the material to emit a gas or vapour, e.g. water vapour, and measuring a pressure or volume difference
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/38—Diluting, dispersing or mixing samples
- G01N2001/381—Diluting, dispersing or mixing samples by membrane diffusion; Permeation tubes
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Abstract
1,026,071. Determination of dissolved gases in water. CENTRAL ELECTRICITY GENERATING BOARD, E. C. POTTER and G. E. EVERITT. May 14,1962 [May 12,1961], No. 174 56/61. Heading B1X. Gases dissolved in impure water are determined by contacting the water with one side of a thin membrane of polymeric material through which gas diffuses into pure water in contact with the other side until equilibrium has been reached. The dissolved gas in the pure solution can be determined. The method can be carried out in vessel 50 having a hollow plug 54 provided with a four way cock 52. A sack of thin polythene 62 is connected to an extension 61 of the plug 54 which is open to the interior of the sack. The determination of oxygen in water is carried out by filling the sack with pure water through tube 56 and an aperture 55 in the surface of the plug. Water to be tested is passed through the vessel outside the sack; the water entering through tube 56 and a groove 63 in the surface of the plug extending from the level of tube 56 to below the socket wall, and the water leaving by tap 51. Tube 56 is then washed and filled with test-reagent by passing test-reagent through tube 56 and a tube 59 leading out through the top of the plug. A known quantity of test reagent as determined by a calibration mark 57 is then introduced into the sack. The apparatus can also be in the form of two co-axial tubes of thin polymeric material is claimed in Specification 1, 026, 072. An apparatus is also described comprising a multiplicity of units separated by thin sheets of polymeric material, stacked in columns and with alternate units connected together in series, the water to be tested flowing through one series and pure water flowing through the other series. The membranes may consist of polythene natural or synthetic e.g. silicone rubber, and polytetrafluoroethylene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1745661A GB1026071A (en) | 1961-05-12 | 1961-05-12 | Improvements in and relating to the determination of dissolved substances in water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1745661A GB1026071A (en) | 1961-05-12 | 1961-05-12 | Improvements in and relating to the determination of dissolved substances in water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1026071A true GB1026071A (en) | 1966-04-14 |
Family
ID=10095496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1745661A Expired GB1026071A (en) | 1961-05-12 | 1961-05-12 | Improvements in and relating to the determination of dissolved substances in water |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1026071A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0092022A1 (en) * | 1982-04-08 | 1983-10-26 | WTW Wissenschaftlich-Technische Werkstätten GmbH | Process of and apparatus for calibrating sensors |
| GB2348380A (en) * | 1999-03-29 | 2000-10-04 | Medeval Limited | Sampling apparatus with silicone rubber membrane |
-
1961
- 1961-05-12 GB GB1745661A patent/GB1026071A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0092022A1 (en) * | 1982-04-08 | 1983-10-26 | WTW Wissenschaftlich-Technische Werkstätten GmbH | Process of and apparatus for calibrating sensors |
| GB2348380A (en) * | 1999-03-29 | 2000-10-04 | Medeval Limited | Sampling apparatus with silicone rubber membrane |
| GB2348380B (en) * | 1999-03-29 | 2003-04-23 | Medeval Ltd | Sampling apparatus and method of sampling using same |
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