CA2172520C - Surveillance environnementale de composes organiques - Google Patents
Surveillance environnementale de composes organiques Download PDFInfo
- Publication number
- CA2172520C CA2172520C CA002172520A CA2172520A CA2172520C CA 2172520 C CA2172520 C CA 2172520C CA 002172520 A CA002172520 A CA 002172520A CA 2172520 A CA2172520 A CA 2172520A CA 2172520 C CA2172520 C CA 2172520C
- Authority
- CA
- Canada
- Prior art keywords
- organic compounds
- carrier fluid
- diffusion cell
- environmental medium
- monitoring
- 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 - Fee Related
Links
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- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
On procède à la surveillance environnementale de faibles concentrations de composés organiques dans un milieu tel que la nappe phréatique en utilisant une cellule de diffusion (112) constituée d'une membrane polymère formant des tubes hélicoïdaux (125) et immergée dans le fluide environnant de sorte que les composés organiques à des concentrations ppb et ppt soient diffusés dans et à travers le matériau polymère. Un gaz porteur dans le tube polymère acquiert une concentration des composés organiques sensiblement équilibrée avec la concentration de composés organiques dans le fluide environnant. De manière à permettre le contrôle au moyen de détecteurs (116) qui ne sont pas sensibles à des taux extrêmement faibles de composés organiques, un dispositif de concentration tel qu'un tube de désorption thermique (114) peut être prévu pour traiter le gaz et l'activation thermique périodique et décharger de celui-ci les composés organiques devant être détectés par un capteur.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AUPM7074 | 1994-07-26 | ||
| AUPM7074A AUPM707494A0 (en) | 1994-07-26 | 1994-07-26 | A method and apparatus for environmental monitoring of low concentration levels of organic compounds |
| PCT/AU1995/000456 WO1996003633A1 (fr) | 1994-07-26 | 1995-07-26 | Surveillance environnementale de composes organiques |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2172520A1 CA2172520A1 (fr) | 1996-02-08 |
| CA2172520C true CA2172520C (fr) | 2006-05-02 |
Family
ID=36283832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002172520A Expired - Fee Related CA2172520C (fr) | 1994-07-26 | 1995-07-26 | Surveillance environnementale de composes organiques |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2172520C (fr) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7212337B2 (ja) * | 2019-07-25 | 2023-01-25 | 国立研究開発法人物質・材料研究機構 | ガスセンサによる測定方法及び測定装置 |
-
1995
- 1995-07-26 CA CA002172520A patent/CA2172520C/fr not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CA2172520A1 (fr) | 1996-02-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |