GB991889A - Improvements in polarography - Google Patents
Improvements in polarographyInfo
- Publication number
- GB991889A GB991889A GB4110160A GB4110160A GB991889A GB 991889 A GB991889 A GB 991889A GB 4110160 A GB4110160 A GB 4110160A GB 4110160 A GB4110160 A GB 4110160A GB 991889 A GB991889 A GB 991889A
- Authority
- GB
- United Kingdom
- Prior art keywords
- gas
- electrolyte
- mercury
- injected
- mixture
- 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
- 238000003969 polarography Methods 0.000 title 1
- 239000007789 gas Substances 0.000 abstract 8
- 239000003792 electrolyte Substances 0.000 abstract 5
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 abstract 4
- 229910052753 mercury Inorganic materials 0.000 abstract 4
- 239000000470 constituent Substances 0.000 abstract 3
- 239000000203 mixture Substances 0.000 abstract 3
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 abstract 2
- 229910021607 Silver chloride Inorganic materials 0.000 abstract 1
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 abstract 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 abstract 1
- 230000027734 detection of oxygen Effects 0.000 abstract 1
- LVXHNCUCBXIIPE-UHFFFAOYSA-L disodium;hydrogen phosphate;hydrate Chemical compound O.[Na+].[Na+].OP([O-])([O-])=O LVXHNCUCBXIIPE-UHFFFAOYSA-L 0.000 abstract 1
- 239000012530 fluid Substances 0.000 abstract 1
- 238000002347 injection Methods 0.000 abstract 1
- 239000007924 injection Substances 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 239000001103 potassium chloride Substances 0.000 abstract 1
- 235000011164 potassium chloride Nutrition 0.000 abstract 1
- 229910052709 silver Inorganic materials 0.000 abstract 1
- 239000004332 silver Substances 0.000 abstract 1
- HKZLPVFGJNLROG-UHFFFAOYSA-M silver monochloride Chemical compound [Cl-].[Ag+] HKZLPVFGJNLROG-UHFFFAOYSA-M 0.000 abstract 1
- 239000011734 sodium Substances 0.000 abstract 1
- 235000017281 sodium acetate Nutrition 0.000 abstract 1
- 239000001632 sodium acetate Substances 0.000 abstract 1
- 239000000243 solution Substances 0.000 abstract 1
- 229910052725 zinc Inorganic materials 0.000 abstract 1
- 239000004246 zinc acetate Substances 0.000 abstract 1
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
- G01N27/26—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
- G01N27/48—Systems using polarography, i.e. measuring changes in current under a slowly-varying voltage
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Molecular Biology (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Measuring Oxygen Concentration In Cells (AREA)
Abstract
991, 889. Determining the relative quantities of fluid mixture constituents. COUNCIL FOR SCIENTIFIC & INDUSTRIAL RESEARCH. Nov. 30, 1961 [Nov. 30, 1960], No. 41101/60. Heading G1N. In an arrangement for determining the concentration of a constituent of a gas mixture, the mixture and a gas containing a known amount of the constituent are passed alternately for predetermined periods through the electrolyte of a dropping mercury polarograph. In a polarograph cell, Fig. 1 (Prov.) the mercury droplets are delivered by a tube 7 directed upwards at an angle of at least 45 degrees and the gas is injected by a pipe 10 through a porous plug 11. A zinc/sodium acetate reference electrode having a pH of at least 5. 5 and terminating in a sintered plug 6 is provided with its end projecting into the electrolyte, which for the detection of oxygen may comprise a solution of 0. 05 NKC, with 1% anhydrous Na 3 PO 4 . Temperature responsive elements such as thermistors may be placed in contact with the main body of the electrolyte for compensation purposes, and a vent 13 is provided for the escaping gas. In a modification described with reference to Fig. 2 (not shown) the reference electrode is silver/silver chloride, which may be placed close to the dropping mercury electrode, the gas is injected by a nozzle against the wall of the electrolyte containing stem, and, the mercury drops are collected in a narrow bore trap which opens through the base of the stem. The gas flow is controlled by a uniselector timing circuit Fig. 3 (not shown) and electromagnetic valves. The electrolyte comprises 25. 2 gms of disodium hydrogen phosphate hydrate and 4 gms of potassium chloride, its pH value being about 8. 5. The temperature and humidity of the injected gas may be controlled. Gas injection rates and component values are given. Specification 936,724 is referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4110160A GB991889A (en) | 1960-11-30 | 1960-11-30 | Improvements in polarography |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4110160A GB991889A (en) | 1960-11-30 | 1960-11-30 | Improvements in polarography |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB991889A true GB991889A (en) | 1965-05-12 |
Family
ID=10418123
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4110160A Expired GB991889A (en) | 1960-11-30 | 1960-11-30 | Improvements in polarography |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB991889A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2415805A1 (en) * | 1978-01-26 | 1979-08-24 | Princeton Applied Res Corp | APPARATUS AND METHOD FOR ANALYSIS OF AN EFFLUENT CURRENT, PARTICULARLY OF A GAS PHASE CHROMATOGRAPHY APPARATUS |
-
1960
- 1960-11-30 GB GB4110160A patent/GB991889A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2415805A1 (en) * | 1978-01-26 | 1979-08-24 | Princeton Applied Res Corp | APPARATUS AND METHOD FOR ANALYSIS OF AN EFFLUENT CURRENT, PARTICULARLY OF A GAS PHASE CHROMATOGRAPHY APPARATUS |
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