Remote detection of organics using Fourier transform infrared spectroscopy
Fourier transform infrared (FTIR) spectroscopy is an ideal technique for remote detection of organic emissions. There is an atmospheric window in the 1200 to 800 cm{sup {minus}1} region, which corresponds to the fingerprint'' region for organic molecules. Virtually all organic molecules have a unique absorption/emission pattern in the fingerprint region. A remote-passive FTIR relies on ambient emission of infrared energy from organics to obtain spectra. The instrumentation consists of inlet optics, and interferometer, a mercury cadmium telluride (MCT) detector, and an on-board computer. The transportable unit measures 40 cm by 50 cm and has been used to collect data while mounted on a helicopter or ground vehicle. Through the use of this FTIR combined with least squares software, it is possible to analyze qualitatively and quantitatively for organic vapors from either the air or ground. The data presented will include quantitative releases of common organics present in incinerator stacks, hazardous wastes, and illegal laboratories. Data will be presented for pure compounds, mixtures, and target analytes in the presence of interfering compounds. The sensitivity, reproducibility, and the potential of the technique will be discussed. 1 ref., 8 figs., 6 tabs.
- Research Organization:
- Argonne National Lab., IL (USA)
- Sponsoring Organization:
- DOE/ER
- DOE Contract Number:
- W-31109-ENG-38
- OSTI ID:
- 6287413
- Report Number(s):
- CONF-9002156-2; ON: DE91006045; TRN: 91-003559
- Resource Relation:
- Conference: 2. international symposium on field screening methods for hazardous wastes and toxic chemicals, Las Vegas, NV (USA), 12-14 Feb 1990
- Country of Publication:
- United States
- Language:
- English
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Comparison of passive-remote and conventional Fourier transform infrared systems for continuously monitoring incinerator emissions
Comparison of passive-remote and conventional Fourier transform infrared systems for continuously monitoring incinerator emissions
Related Subjects
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
54 ENVIRONMENTAL SCIENCES
CARBON TETRACHLORIDE
INFRARED SPECTRA
MONITORING
CHLOROFORM
GASEOUS WASTES
METHANOL
FOURIER TRANSFORM SPECTROMETERS
MIXTURES
ORGANIC COMPOUNDS
SENSITIVITY
VAPORS
ALCOHOLS
CHLORINATED ALIPHATIC HYDROCARBONS
DISPERSIONS
FLUIDS
GASES
HALOGENATED ALIPHATIC HYDROCARBONS
HYDROXY COMPOUNDS
MEASURING INSTRUMENTS
ORGANIC CHLORINE COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
SPECTRA
SPECTROMETERS
WASTES
400102* - Chemical & Spectral Procedures
540120 - Environment
Atmospheric- Chemicals Monitoring & Transport- (1990-)