Characterization and monitoring of total organic chloride vapors. [Halosnif sensor] [electronic resource].
- Published:
- Washington, D.C. : United States. Dept. of Energy, 1992.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy. - Physical Description:
- Pages: (8 pages) : digital, PDF file
- Additional Creators:
- Pacific Northwest Laboratory, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information
Access Online
- Restrictions on Access:
- Free-to-read Unrestricted online access
- Summary:
- Chemical sensors are being developed intermediate highly selective and broadly selective methods. PNL is developing an optical-emission based TOCl (total organic chlorinated compounds) sensor (Halosnif) which is capable of measuring TOCl in real time on an extracted gas sample over a wide linear dynamic range. Halosnif employs an atomic emission sensor that is broadly selective for any moderately volatile organic hclorinated vapor but does not distinguish between classes of chlorinated compounds. A rf-induced He plasma is used to excite the chlorine atoms, causing light emission at 837.6 nm. The sensitivity ranges from 1-2 ppM up to at least 10,000 ppM. Field tests were conducted at Tinker AFB in areas of high TCE contamination, in two boreholes at Savannah River, and at Hanford CClâ‚„ vapor extraction system. This sensor is briefly compared with acoustic wave sensors being developed by SNL (PAWS). 4 figs. (DLC)
- Report Numbers:
- E 1.99:pnl-sa-21138
E 1.99: conf-920791--7
conf-920791--7
pnl-sa-21138 - Subject(s):
- Other Subject(s):
- Organic Chlorine Compounds
- Gas Analysis
- Boreholes
- Depth
- Field Tests
- Monitors
- Photon Emission
- Real Time Systems
- Savannah River Plant
- Soils
- Vapors
- Volatile Matter
- Cavities
- Dimensions
- Emission
- Fluids
- Gases
- Matter
- Measuring Instruments
- National Organizations
- Organic Compounds
- Organic Halogen Compounds
- Testing
- Us Aec
- Us Doe
- Us Erda
- Us Organizations
- Note:
- Published through SciTech Connect.
07/01/1992.
"pnl-sa-21138"
" conf-920791--7"
"DE92019349"
Information exchange meeting on characterization sensors and monitoring, Dallas, TX (United States), 15-16 Jul 1992.
Evans, J.C. Jr.; Olsen, K.B.; Anheier, N.C. Jr. - Funding Information:
- AC06-76RL01830
View MARC record | catkey: 14147989