GB1535361A - Electrochemical cell - Google Patents
Electrochemical cellInfo
- Publication number
- GB1535361A GB1535361A GB1061476A GB1061476A GB1535361A GB 1535361 A GB1535361 A GB 1535361A GB 1061476 A GB1061476 A GB 1061476A GB 1061476 A GB1061476 A GB 1061476A GB 1535361 A GB1535361 A GB 1535361A
- Authority
- GB
- United Kingdom
- Prior art keywords
- ammonia
- inch
- membrane
- glass
- solution
- 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
- 239000011521 glass Substances 0.000 abstract 7
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract 6
- 239000012528 membrane Substances 0.000 abstract 4
- -1 P.T.F.E. Polymers 0.000 abstract 3
- 229910021529 ammonia Inorganic materials 0.000 abstract 3
- 239000003792 electrolyte Substances 0.000 abstract 3
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonium chloride Substances [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 abstract 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 abstract 2
- 229910021607 Silver chloride Inorganic materials 0.000 abstract 2
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 abstract 2
- 235000011114 ammonium hydroxide Nutrition 0.000 abstract 2
- 239000004202 carbamide Substances 0.000 abstract 2
- 230000002209 hydrophobic effect Effects 0.000 abstract 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 abstract 2
- HKZLPVFGJNLROG-UHFFFAOYSA-M silver monochloride Chemical compound [Cl-].[Ag+] HKZLPVFGJNLROG-UHFFFAOYSA-M 0.000 abstract 2
- 239000004677 Nylon Substances 0.000 abstract 1
- 239000002033 PVDF binder Substances 0.000 abstract 1
- 239000004743 Polypropylene Substances 0.000 abstract 1
- 108010046334 Urease Proteins 0.000 abstract 1
- 229920002301 cellulose acetate Polymers 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 229920001577 copolymer Polymers 0.000 abstract 1
- 239000003085 diluting agent Substances 0.000 abstract 1
- 230000007062 hydrolysis Effects 0.000 abstract 1
- 238000006460 hydrolysis reaction Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 abstract 1
- 229920001778 nylon Polymers 0.000 abstract 1
- 239000004033 plastic Substances 0.000 abstract 1
- 229920003023 plastic Polymers 0.000 abstract 1
- 229910052697 platinum Inorganic materials 0.000 abstract 1
- 229920001155 polypropylene Polymers 0.000 abstract 1
- 229920002981 polyvinylidene fluoride Polymers 0.000 abstract 1
- 239000011148 porous material Substances 0.000 abstract 1
Classifications
-
- 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
- G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
- G01N33/483—Physical analysis of biological material
- G01N33/487—Physical analysis of biological material of liquid biological material
- G01N33/49—Blood
- G01N33/4925—Blood measuring blood gas content, e.g. O2, CO2, HCO3
-
- 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
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/416—Systems
- G01N27/4162—Systems investigating the composition of gases, by the influence exerted on ionic conductivity in a liquid
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Biomedical Technology (AREA)
- Physics & Mathematics (AREA)
- Immunology (AREA)
- General Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Pathology (AREA)
- Hematology (AREA)
- General Physics & Mathematics (AREA)
- Biochemistry (AREA)
- Analytical Chemistry (AREA)
- Food Science & Technology (AREA)
- Biophysics (AREA)
- Medicinal Chemistry (AREA)
- Ecology (AREA)
- Urology & Nephrology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Investigating Or Analysing Biological Materials (AREA)
- Measuring Or Testing Involving Enzymes Or Micro-Organisms (AREA)
Abstract
1535361 Glass electrode; ammonia solution determination OWENS ILLINOIS Inc 17 March 1976 10614/76 Heading G1N A glass electrode component comprises a chemically resistant glass tube 2 of diameter 0À2-0À5 inch with a pH sensitive glass tip 3 having a convex surface of arc height 0À005-0À015inch. Preferred tube diameter is 1/3 inch and arc height 0À005- 0-01 inch. The glass electrode 11 is used in an ammonia sensor 10 which comprises an electrolyte chamber 13 into which the glass electrode (containing an Ag/AgCl reference electrode in HCl) and a reference electrode 12 are positioned. Thin, flexible, semi-permeable, micro-porous plastics membrane 14 which is selective to ammonia closes the electrolyte chamber 13 and defines an electrolyte film of substantially uniform thickness between membrane 14 and the glass electrode tip. The solution under test flows via passage 17 into test area 23, passage 17 being narrow enough to cause turbulent flow. The reference electrode 12 may be Ag/AgCl on platinum. The membrane 14 is preferably hydrophobic with a thickness of 0À0001-0À01 inch, a porosity of 10-85% and a pore diameter of 0À05- Smicrons. The membrane may comprise an acrylonitrile-vinyl chloride copolymer on nylon support, hydrophobic cellulose acetate, P.T.F.E., polypropylene or polyvinylidene fluoride. The sensor 10 may be used for urea determination. A urea specimen is injected into a flowing stream of buffered diluent (pH 5-9) and passed through a bed of immobilized urease. The hydrolysis product formed contains ammonium ions which are converted to ammonia solution by reaction with a base (Group I or Group II hydroxide) to adjust the solution pH to a least 11. This solution is then flowed through sensor 11 where the ammonia is determined.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1061476A GB1535361A (en) | 1976-03-17 | 1976-03-17 | Electrochemical cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1061476A GB1535361A (en) | 1976-03-17 | 1976-03-17 | Electrochemical cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1535361A true GB1535361A (en) | 1978-12-13 |
Family
ID=9971115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1061476A Expired GB1535361A (en) | 1976-03-17 | 1976-03-17 | Electrochemical cell |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1535361A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2481805A1 (en) * | 1980-05-05 | 1981-11-06 | Instrumentation Labor Inc | SYSTEM FOR ANALYZING PRECIOUS FLUID PARAMETERS, SUCH AS BLOOD |
| US4361540A (en) | 1980-05-05 | 1982-11-30 | Instrumentation Laboratory Inc. | Analysis system |
| US4443407A (en) * | 1981-04-02 | 1984-04-17 | Instrumentation Laboratory Inc. | Analysis system |
| WO1985004482A1 (en) * | 1984-03-27 | 1985-10-10 | University Of Strathclyde | Electrochemical assembly |
| EP0247941A3 (en) * | 1986-05-26 | 1989-02-22 | Terumo Kabushiki Kaisha Trading As Terumo Corporation | Gas sensor |
| EP1624299A1 (en) * | 2004-08-03 | 2006-02-08 | Hach Lange GmbH | Method for determining the parameters of a gaselectrode |
-
1976
- 1976-03-17 GB GB1061476A patent/GB1535361A/en not_active Expired
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2481805A1 (en) * | 1980-05-05 | 1981-11-06 | Instrumentation Labor Inc | SYSTEM FOR ANALYZING PRECIOUS FLUID PARAMETERS, SUCH AS BLOOD |
| US4361540A (en) | 1980-05-05 | 1982-11-30 | Instrumentation Laboratory Inc. | Analysis system |
| US4361539A (en) | 1980-05-05 | 1982-11-30 | Instrumentation Laboratory Inc. | Analysis system |
| US4443407A (en) * | 1981-04-02 | 1984-04-17 | Instrumentation Laboratory Inc. | Analysis system |
| WO1985004482A1 (en) * | 1984-03-27 | 1985-10-10 | University Of Strathclyde | Electrochemical assembly |
| EP0247941A3 (en) * | 1986-05-26 | 1989-02-22 | Terumo Kabushiki Kaisha Trading As Terumo Corporation | Gas sensor |
| EP1624299A1 (en) * | 2004-08-03 | 2006-02-08 | Hach Lange GmbH | Method for determining the parameters of a gaselectrode |
| US7799202B2 (en) | 2004-08-03 | 2010-09-21 | Hach Lange Gmbh | Method for determining parameters of a gas-selective electrode |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| 732 | Registration of transactions, instruments or events in the register (sect. 32/1977) | ||
| PCNP | Patent ceased through non-payment of renewal fee |