CA2072522A1 - Colorimetric testing and measuring device for gases - Google Patents
Colorimetric testing and measuring device for gasesInfo
- Publication number
- CA2072522A1 CA2072522A1 CA 2072522 CA2072522A CA2072522A1 CA 2072522 A1 CA2072522 A1 CA 2072522A1 CA 2072522 CA2072522 CA 2072522 CA 2072522 A CA2072522 A CA 2072522A CA 2072522 A1 CA2072522 A1 CA 2072522A1
- Authority
- CA
- Canada
- Prior art keywords
- carrier
- gases
- indicator
- moisture
- retainer
- 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.)
- Granted
Links
- 239000007789 gas Substances 0.000 title abstract 3
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 abstract 2
- XYFCBTPGUUZFHI-UHFFFAOYSA-N Phosphine Chemical compound P XYFCBTPGUUZFHI-UHFFFAOYSA-N 0.000 abstract 2
- FLKPEMZONWLCSK-UHFFFAOYSA-N diethyl phthalate Chemical compound CCOC(=O)C1=CC=CC=C1C(=O)OCC FLKPEMZONWLCSK-UHFFFAOYSA-N 0.000 abstract 2
- OKIZCWYLBDKLSU-UHFFFAOYSA-M N,N,N-Trimethylmethanaminium chloride Chemical compound [Cl-].C[N+](C)(C)C OKIZCWYLBDKLSU-UHFFFAOYSA-M 0.000 abstract 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 1
- RBFQJDQYXXHULB-UHFFFAOYSA-N arsane Chemical compound [AsH3] RBFQJDQYXXHULB-UHFFFAOYSA-N 0.000 abstract 1
- 238000001514 detection method Methods 0.000 abstract 1
- 150000004678 hydrides Chemical class 0.000 abstract 1
- 230000014759 maintenance of location Effects 0.000 abstract 1
- 238000005259 measurement Methods 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 229910052763 palladium Inorganic materials 0.000 abstract 1
- 229910000073 phosphorus hydride Inorganic materials 0.000 abstract 1
- 239000000741 silica gel Substances 0.000 abstract 1
- 229910002027 silica gel Inorganic materials 0.000 abstract 1
- 238000003860 storage Methods 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- HXJUTPCZVOIRIF-UHFFFAOYSA-N sulfolane Chemical compound O=S1(=O)CCCC1 HXJUTPCZVOIRIF-UHFFFAOYSA-N 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N31/00—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
- G01N31/22—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using chemical indicators
- G01N31/223—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using chemical indicators for investigating presence of specific gases or aerosols
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N31/00—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
- G01N31/22—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using chemical indicators
- G01N31/223—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using chemical indicators for investigating presence of specific gases or aerosols
- G01N31/224—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using chemical indicators for investigating presence of specific gases or aerosols for investigating presence of dangerous gases
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Biochemistry (AREA)
- Biophysics (AREA)
- Molecular Biology (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Dispersion Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Toxicology (AREA)
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
- Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)
Abstract
An improved measuring apparatus for the colorimetric indication of gases is disclosed. The apparatus comprises a carrier that is impregnated with a solution of a moisture retainer and a detection indicator. A mixture of sulfolane and diethylphthalate is used as the moisture retainer. To measure hydride gases, such as arsine or phosphine, the indicator con-sists of palladium tetramine chloride. The impregnating solution may be applied to a paper carrier or to a granular silica gel carrier. Due to the presence of the moisture retainer, the moisture required for the indicating reaction remains on the indicator carrier for a longer period of time, both during stor-age of the device and during measurements, when the carrier is exposed to the gaseous substance that is to be indicated.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19914121633 DE4121633C2 (en) | 1991-06-29 | 1991-06-29 | Colorimetric test and measurement device for gases |
| DEP4121633.4 | 1991-06-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2072522A1 true CA2072522A1 (en) | 1992-12-30 |
| CA2072522C CA2072522C (en) | 1995-08-01 |
Family
ID=6435100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2072522 Expired - Fee Related CA2072522C (en) | 1991-06-29 | 1992-06-26 | Colorimetric testing and measuring device for gases |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0521300A2 (en) |
| CA (1) | CA2072522C (en) |
| DE (1) | DE4121633C2 (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU833501A1 (en) * | 1979-07-24 | 1981-05-30 | Предприятие П/Я А-7815 | Indicator solution for making ammonia indicator tape |
| US4420567A (en) * | 1981-10-22 | 1983-12-13 | Mda Scientific, Inc. | Hydride gas detecting tape |
| JPS61296268A (en) * | 1985-06-25 | 1986-12-27 | Nippon Paionikusu Kk | Detection agent |
| DE4020753A1 (en) * | 1989-09-22 | 1991-04-04 | Draegerwerk Ag | COLORIMETRIC TEST AND MEASURING DEVICE FOR HYDRIDGAS |
-
1991
- 1991-06-29 DE DE19914121633 patent/DE4121633C2/en not_active Expired - Fee Related
-
1992
- 1992-05-29 EP EP92109020A patent/EP0521300A2/en not_active Ceased
- 1992-06-26 CA CA 2072522 patent/CA2072522C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| EP0521300A2 (en) | 1993-01-07 |
| DE4121633C2 (en) | 1998-09-17 |
| CA2072522C (en) | 1995-08-01 |
| DE4121633A1 (en) | 1993-01-07 |
| EP0521300A3 (en) | 1994-03-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |