A fiber-optic spectrochemical emission sensor as a detector for volatile chlorinated compounds
- Pacific Northwest Lab., Richland, WA (USA)
- Eastern Washington Univ., Cheney, WA (USA). Dept. of Physics
A radio frequency induced helium plasma (RFIHP) detector was designed and tested as a sensor for volatile chlorinated compounds. The RFIHP detector uses a critical orifice air inlet and an RF-excited sub-atmospheric pressure helium plasma to excite the ambient air sample. The excitation source is coupled to a fiber-optic cable and associated collection optics to monitor the emission intensity of the 837.6-nm emission line of chlorine. The RFIHP detector demonstrated linearity from 0 to 500 ppMv carbon tetrachloride with a correlation coefficient of 0.996 and excellent reproducibility. The detection limit for carbon tetrachloride in air was 5 ppMv. Fluorinated compounds can also be readily analyzed by changing the analytical wavelength to 739.9 nm. 10 refs., 9 figs.
- Research Organization:
- Pacific Northwest Lab., Richland, WA (USA)
- Sponsoring Organization:
- DOE/NE
- DOE Contract Number:
- AC06-76RL01830
- OSTI ID:
- 6654121
- Report Number(s):
- PNL-SA-17429; CONF-900402-9; ON: DE90016296; TRN: 90-028227
- Resource Relation:
- Conference: 199. national meeting of the American Chemical Society, Boston, MA (USA), 22-27 Apr 1990
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
47 OTHER INSTRUMENTATION
CHLORINATED ALIPHATIC HYDROCARBONS
DETECTION
CHLORINE COMPOUNDS
CARBON TETRACHLORIDE
EMISSION SPECTROSCOPY
FIBER OPTICS
HAZARDOUS MATERIALS
HELIUM
PLASMA
ELEMENTS
FLUIDS
GASES
HALOGEN COMPOUNDS
HALOGENATED ALIPHATIC HYDROCARBONS
MATERIALS
NONMETALS
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
RARE GASES
SPECTROSCOPY
540120* - Environment
Atmospheric- Chemicals Monitoring & Transport- (1990-)
440800 - Miscellaneous Instrumentation- (1990-)