CA1083220A - Electrochemical gas detector for the detection of gas traces - Google Patents
Electrochemical gas detector for the detection of gas tracesInfo
- Publication number
- CA1083220A CA1083220A CA278,335A CA278335A CA1083220A CA 1083220 A CA1083220 A CA 1083220A CA 278335 A CA278335 A CA 278335A CA 1083220 A CA1083220 A CA 1083220A
- Authority
- CA
- Canada
- Prior art keywords
- gas
- filter
- electrochemical
- electrolyte
- porous body
- 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
- 238000001514 detection method Methods 0.000 title claims description 10
- 238000005259 measurement Methods 0.000 claims abstract description 48
- 239000003792 electrolyte Substances 0.000 claims abstract description 16
- 238000009792 diffusion process Methods 0.000 claims abstract description 14
- 238000004891 communication Methods 0.000 claims abstract description 7
- 230000008859 change Effects 0.000 claims abstract description 6
- 239000005486 organic electrolyte Substances 0.000 claims abstract description 6
- 239000007787 solid Substances 0.000 claims abstract description 5
- 239000007789 gas Substances 0.000 claims description 77
- 239000000306 component Substances 0.000 claims description 30
- 238000001179 sorption measurement Methods 0.000 claims description 23
- 239000012071 phase Substances 0.000 claims description 19
- 239000000463 material Substances 0.000 claims description 12
- 238000006243 chemical reaction Methods 0.000 claims description 10
- YGYAWVDWMABLBF-UHFFFAOYSA-N Phosgene Chemical compound ClC(Cl)=O YGYAWVDWMABLBF-UHFFFAOYSA-N 0.000 claims description 9
- 239000012528 membrane Substances 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 9
- 230000008569 process Effects 0.000 claims description 9
- 239000011245 gel electrolyte Substances 0.000 claims description 8
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 claims description 7
- 229910052709 silver Inorganic materials 0.000 claims description 7
- 239000004332 silver Substances 0.000 claims description 7
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 claims description 6
- 229920000642 polymer Polymers 0.000 claims description 5
- WPYMKLBDIGXBTP-UHFFFAOYSA-N Benzoic acid Natural products OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 4
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 claims description 4
- 239000002904 solvent Substances 0.000 claims description 4
- MGWGWNFMUOTEHG-UHFFFAOYSA-N 4-(3,5-dimethylphenyl)-1,3-thiazol-2-amine Chemical compound CC1=CC(C)=CC(C=2N=C(N)SC=2)=C1 MGWGWNFMUOTEHG-UHFFFAOYSA-N 0.000 claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- JKNZUZCGFROMAZ-UHFFFAOYSA-L [Ag+2].[O-]S([O-])(=O)=O Chemical compound [Ag+2].[O-]S([O-])(=O)=O JKNZUZCGFROMAZ-UHFFFAOYSA-L 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 239000007790 solid phase Substances 0.000 claims description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 2
- 238000000835 electrochemical detection Methods 0.000 claims description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 2
- 229910052737 gold Inorganic materials 0.000 claims description 2
- 239000010931 gold Substances 0.000 claims description 2
- 230000006872 improvement Effects 0.000 claims description 2
- 239000001117 sulphuric acid Substances 0.000 claims description 2
- 235000011149 sulphuric acid Nutrition 0.000 claims description 2
- 239000005711 Benzoic acid Substances 0.000 claims 3
- 239000002000 Electrolyte additive Substances 0.000 claims 3
- 235000010233 benzoic acid Nutrition 0.000 claims 3
- WXBLLCUINBKULX-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1.OC(=O)C1=CC=CC=C1 WXBLLCUINBKULX-UHFFFAOYSA-N 0.000 claims 3
- RUTXIHLAWFEWGM-UHFFFAOYSA-H iron(3+) sulfate Chemical compound [Fe+3].[Fe+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O RUTXIHLAWFEWGM-UHFFFAOYSA-H 0.000 claims 3
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims 3
- 239000004926 polymethyl methacrylate Substances 0.000 claims 3
- WXMKPNITSTVMEF-UHFFFAOYSA-M sodium benzoate Chemical compound [Na+].[O-]C(=O)C1=CC=CC=C1 WXMKPNITSTVMEF-UHFFFAOYSA-M 0.000 claims 3
- 235000010234 sodium benzoate Nutrition 0.000 claims 3
- 239000004299 sodium benzoate Substances 0.000 claims 3
- NDACNGSDAFKTGE-UHFFFAOYSA-N 3-hydroxydiphenylamine Chemical compound OC1=CC=CC(NC=2C=CC=CC=2)=C1 NDACNGSDAFKTGE-UHFFFAOYSA-N 0.000 claims 2
- CHKVPAROMQMJNQ-UHFFFAOYSA-M potassium bisulfate Chemical compound [K+].OS([O-])(=O)=O CHKVPAROMQMJNQ-UHFFFAOYSA-M 0.000 claims 2
- 238000010521 absorption reaction Methods 0.000 abstract description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 10
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 6
- 150000002500 ions Chemical class 0.000 description 6
- RAHZWNYVWXNFOC-UHFFFAOYSA-N sulfur dioxide Inorganic materials O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 6
- 239000011521 glass Substances 0.000 description 5
- 230000035945 sensitivity Effects 0.000 description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- GQPLMRYTRLFLPF-UHFFFAOYSA-N nitrous oxide Inorganic materials [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 3
- 239000012494 Quartz wool Substances 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 239000005864 Sulphur Substances 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 239000012159 carrier gas Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000002848 electrochemical method Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000004291 sulphur dioxide Substances 0.000 description 2
- 235000010269 sulphur dioxide Nutrition 0.000 description 2
- YOVXRIACERVBAG-UHFFFAOYSA-N 6-hydroxy-2-oxo-6-phenylhexa-3,5-dienoic acid Chemical compound OC(=O)C(=O)C=CC=C(O)C1=CC=CC=C1 YOVXRIACERVBAG-UHFFFAOYSA-N 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 101000632261 Homo sapiens Semaphorin-3A Proteins 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 102100027974 Semaphorin-3A Human genes 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 125000003545 alkoxy group Chemical group 0.000 description 1
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 1
- 238000004817 gas chromatography Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 229940046892 lead acetate Drugs 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 231100000989 no adverse effect Toxicity 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 125000002270 phosphoric acid ester group Chemical group 0.000 description 1
- 229920000136 polysorbate Polymers 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 229910000343 potassium bisulfate Inorganic materials 0.000 description 1
- KMUONIBRACKNSN-UHFFFAOYSA-N potassium dichromate Chemical compound [K+].[K+].[O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O KMUONIBRACKNSN-UHFFFAOYSA-N 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 229910021653 sulphate ion Inorganic materials 0.000 description 1
- 238000012360 testing method Methods 0.000 description 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
- G01N27/403—Cells and electrode assemblies
- G01N27/404—Cells with anode, cathode and cell electrolyte on the same side of a permeable membrane which separates them from the sample fluid, e.g. Clark-type oxygen sensors
- G01N27/4045—Cells with anode, cathode and cell electrolyte on the same side of a permeable membrane which separates them from the sample fluid, e.g. Clark-type oxygen sensors for gases other than oxygen
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T436/00—Chemistry: analytical and immunological testing
- Y10T436/17—Nitrogen containing
- Y10T436/177692—Oxides of nitrogen
- Y10T436/178459—Only nitrogen dioxide
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T436/00—Chemistry: analytical and immunological testing
- Y10T436/18—Sulfur containing
- Y10T436/182—Organic or sulfhydryl containing [e.g., mercaptan, hydrogen, sulfide, etc.]
- Y10T436/184—Only hydrogen sulfide
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T436/00—Chemistry: analytical and immunological testing
- Y10T436/18—Sulfur containing
- Y10T436/186—Sulfur dioxide
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T436/00—Chemistry: analytical and immunological testing
- Y10T436/19—Halogen containing
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Biochemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Molecular Biology (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
- Measuring Oxygen Concentration In Cells (AREA)
- Sampling And Sample Adjustment (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2621676A DE2621676C3 (de) | 1976-05-15 | 1976-05-15 | Elektrochemischer Gasdetektor zum Nachweis von Gasspuren |
| DEP2621676.2 | 1976-05-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1083220A true CA1083220A (en) | 1980-08-05 |
Family
ID=5978067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA278,335A Expired CA1083220A (en) | 1976-05-15 | 1977-05-13 | Electrochemical gas detector for the detection of gas traces |
Country Status (14)
Families Citing this family (44)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2627487A1 (de) * | 1976-06-18 | 1977-12-29 | Bayer Ag | Elektrochemischer nachweis von phosgen in gasgemischen |
| DE2812613C2 (de) * | 1978-03-22 | 1983-12-15 | Bayer Ag, 5090 Leverkusen | Elektrochemische Zelle |
| JPS5555753U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1978-10-12 | 1980-04-15 | ||
| US4236307A (en) * | 1978-11-02 | 1980-12-02 | Johnson Controls Inc. | Method of making a nitrogen dioxide sensing element |
| DE2849209C2 (de) * | 1978-11-13 | 1983-02-03 | Hans-Jürgen 4630 Bochum Gräbner | Elektrochemische Diffussionsmeßzelle |
| US4184937A (en) * | 1978-12-26 | 1980-01-22 | Catalyst Research Corporation | Electrochemical cell for the detection of chlorine |
| GB2083631A (en) * | 1980-09-09 | 1982-03-24 | Auergesellschaft Gmbh | Filter arrangement for diffusion gas composition measurement head |
| DE3033796A1 (de) * | 1980-09-09 | 1982-04-22 | Bayer Ag, 5090 Leverkusen | Elektrochemischer sensor zum nachweis reduzierender gase, insbesondere von kohlenmonoxid, hydrazin und wasserstoff in luft |
| DE3129680A1 (de) * | 1981-07-28 | 1983-02-17 | Bayer Ag, 5090 Leverkusen | Messeinrichtung zur analytischen bestimmung eines gaspartialdruckes |
| US4445999A (en) * | 1982-03-01 | 1984-05-01 | General Motors Corporation | Method of manufacturing gel electrode for early detection of metal fatigue |
| US4522690A (en) * | 1983-12-01 | 1985-06-11 | Honeywell Inc. | Electrochemical sensing of carbon monoxide |
| JPH0623725B2 (ja) * | 1985-12-25 | 1994-03-30 | 日本特殊陶業株式会社 | ガスセンサの調整法 |
| DE3609402A1 (de) * | 1986-03-20 | 1987-09-24 | Bayer Diagnostic & Electronic | Verfahren zur herstellung elektrochemischer gassensoren |
| GB2205653A (en) * | 1987-05-15 | 1988-12-14 | Nat Res Dev | Electrochemical sensor with solid phase electrolyte |
| US4900405A (en) * | 1987-07-15 | 1990-02-13 | Sri International | Surface type microelectronic gas and vapor sensor |
| DE4128494A1 (de) * | 1991-08-28 | 1993-03-04 | Bayer Ag | Elektrochemischer sensor |
| DE4232295C2 (de) * | 1992-09-26 | 1996-03-14 | Draegerwerk Ag | Elektrochemischer Gassensor mit scheibenförmigen Elektroden, die gleichzeitig elektrische Kontaktzuführungen sind |
| US5879526A (en) * | 1994-11-08 | 1999-03-09 | Robert Bosch Gmbh | Electrochemical measuring sensor for determining nitrogen oxides in gas mixtures |
| DE19517144C1 (de) * | 1995-05-10 | 1996-07-04 | Draegerwerk Ag | Filter für elektrochemische Meßzelle |
| FR2735037B1 (fr) * | 1995-06-07 | 1997-09-19 | Ind De Construction D App Et R | Filtre a gaz selectif pour le dosage quantitatif et qualitatif de gaz toxique |
| JPH1071150A (ja) * | 1996-07-03 | 1998-03-17 | Nippon Koden Corp | 生体内ガスセンサ |
| DE19708038C2 (de) * | 1997-02-28 | 2000-03-09 | Draegerwerk Ag | Elektrochemische Meßzelle zum Nachweis von Phosgen |
| US6001240A (en) * | 1997-07-02 | 1999-12-14 | Mine Safety Appliances Company | Electrochemical detection of hydrogen cyanide |
| CA2245050C (en) * | 1997-09-11 | 2000-09-05 | Kehoe Component Sales Inc. Dba Pace Electronic Products Inc. | Three-electrode electrochemical gas sensor |
| CA2215108C (en) * | 1997-09-11 | 1999-10-26 | Senco Sensors Inc. | Electrochemical gas sensor |
| AU1044099A (en) * | 1997-11-10 | 1999-05-31 | Central Research Laboratories Limited | A gas sensor |
| GB2335043B (en) * | 1998-03-04 | 2002-05-22 | Eev Ltd | Gas sensors |
| DE19832395C1 (de) * | 1998-07-18 | 1999-11-25 | Draeger Sicherheitstech Gmbh | Elektrochemische Meßzelle zum Nachweis von Hydridgasen |
| CA2255472C (en) * | 1998-12-10 | 2005-02-22 | Senco Sensors Inc. | Electrochemical gas sensor with gas communication means |
| AUPP934799A0 (en) * | 1999-03-22 | 1999-04-15 | Bush, Richard | Apparatus for anlaysing reduced inorganic sulfur |
| US6284545B1 (en) * | 1999-03-24 | 2001-09-04 | Industrial Scientific Corporation | Filter for gas sensor |
| US6248224B1 (en) * | 1999-05-12 | 2001-06-19 | Mst Analytics Inc. | Toxic sensor and method of manufacture |
| WO2003092090A2 (de) * | 2002-04-25 | 2003-11-06 | Pemeas Gmbh | Mehrschichtige elektrolytmembran |
| US6840084B2 (en) * | 2002-07-24 | 2005-01-11 | Elena Nikolskaya | Gas monitoring system and method |
| DE10246461A1 (de) * | 2002-10-04 | 2004-04-15 | Celanese Ventures Gmbh | Protonenleitende Polymermembran enthaltend Polyazolblends und deren Anwendung in Brennstoffzellen |
| DE10301810A1 (de) * | 2003-01-20 | 2004-07-29 | Sartorius Ag | Membran-Elektroden-Einheit, Polymermembranen für eine Membran-Elektroden-Einheit und Polymerelektrolyt-Brennstoffzellen sowie Verfahren zur Herstellung derselben |
| US7771654B1 (en) * | 2006-09-07 | 2010-08-10 | Moore Randall P | Apparatus for monitoring gaseous components of a flue gas |
| US8961880B2 (en) * | 2008-07-14 | 2015-02-24 | The Aerospace Corporation | Polyaniline nanofiber-amine composite materials for phosgene detection |
| US8852950B2 (en) * | 2008-09-03 | 2014-10-07 | Testo Ag | Method and device for measuring NOx concentration using measurements of NOx and a second gas component |
| DK2443176T3 (da) * | 2009-06-20 | 2020-08-24 | Basf Se | Fremgangsmåde til fremstilling af en højmolekylær polyazol |
| US10816503B2 (en) | 2016-07-12 | 2020-10-27 | Honeywell International Inc. | Electrochemical gas sensor for detecting hydrogen cyanide gas |
| CN119044254A (zh) * | 2018-01-04 | 2024-11-29 | 利腾股份有限公司 | 谐振气体传感器 |
| US11137368B2 (en) * | 2018-01-04 | 2021-10-05 | Lyten, Inc. | Resonant gas sensor |
| CN109813779A (zh) * | 2019-02-01 | 2019-05-28 | 荆州市爱尔瑞科技有限公司 | 一种电化学二氧化硫气体传感器 |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3260656A (en) * | 1962-09-27 | 1966-07-12 | Corning Glass Works | Method and apparatus for electrolytically determining a species in a fluid |
| US3258415A (en) * | 1964-05-11 | 1966-06-28 | Union Carbide Corp | Oxygen analyzer and oxygen-depolarized cell therefor |
| US3510420A (en) * | 1967-04-24 | 1970-05-05 | Honeywell Inc | Polarographic cell with composite electrode-diffusion medium |
| US3857760A (en) * | 1968-07-08 | 1974-12-31 | Bayer Ag | Process of measuring the concentration of a dissociatable component in a gas and apparatus therefor |
| BE795681A (fr) * | 1972-02-21 | 1973-08-20 | Philips Nv | Cellule de mesure permettant de determiner la concentration en oxygene dans un melange gazeux |
| US3847777A (en) * | 1972-05-08 | 1974-11-12 | Instrumentation Labor Inc | Electrochemical analyzer |
| DE2247697A1 (de) * | 1972-09-28 | 1974-04-18 | Licentia Gmbh | Einrichtung zum quantitativen nachweis von schwefelwasserstoff, schwefeldioxid, stickstoffmonoxid und stickstoffdioxid |
| US3915831A (en) * | 1973-04-09 | 1975-10-28 | Orion Research | Hydrogen sulfide sensing cell |
| DE2436261B2 (de) * | 1974-07-27 | 1976-11-25 | Bayer Ag, 5090 Leverkusen | Elektrochemische gasdetektoren |
-
1976
- 1976-05-15 DE DE2621676A patent/DE2621676C3/de not_active Expired
-
1977
- 1977-04-25 US US05/791,126 patent/US4141800A/en not_active Expired - Lifetime
- 1977-05-11 CH CH590677A patent/CH614780A5/xx not_active IP Right Cessation
- 1977-05-11 GB GB19771/77A patent/GB1538841A/en not_active Expired
- 1977-05-12 SE SE7705570A patent/SE7705570L/ not_active Application Discontinuation
- 1977-05-12 NL NL7705273A patent/NL7705273A/xx not_active Application Discontinuation
- 1977-05-13 DK DK212177A patent/DK212177A/da unknown
- 1977-05-13 CA CA278,335A patent/CA1083220A/en not_active Expired
- 1977-05-13 BE BE2055905A patent/BE854583A/xx not_active IP Right Cessation
- 1977-05-13 IT IT23584/77A patent/IT1077129B/it active
- 1977-05-13 LU LU77329A patent/LU77329A1/xx unknown
- 1977-05-13 FR FR7714738A patent/FR2351410A1/fr active Granted
- 1977-05-13 JP JP5447077A patent/JPS5474493A/ja active Granted
- 1977-05-13 IE IE979/77A patent/IE45057B1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5737025B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1982-08-07 |
| US4141800A (en) | 1979-02-27 |
| LU77329A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1977-12-13 |
| NL7705273A (nl) | 1977-11-17 |
| SE7705570L (sv) | 1977-11-16 |
| CH614780A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1979-12-14 |
| FR2351410B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1980-12-05 |
| DE2621676B2 (de) | 1978-04-27 |
| IE45057L (en) | 1977-11-15 |
| DK212177A (da) | 1977-11-16 |
| GB1538841A (en) | 1979-01-24 |
| JPS5474493A (en) | 1979-06-14 |
| FR2351410A1 (fr) | 1977-12-09 |
| DE2621676C3 (de) | 1979-01-11 |
| DE2621676A1 (de) | 1977-11-24 |
| IE45057B1 (en) | 1982-06-16 |
| IT1077129B (it) | 1985-05-04 |
| BE854583A (fr) | 1977-11-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |