A quantitative method to detect explosives and other selected semivolatiles in soil samples by Fourier transform infrared spectroscopy
- Argonne National Lab., IL (United States)
- Army Toxic and Hazardous Materials Agency, Aberdeen Proving Ground, MD (United States)
The current methods for hazardous waste site characterization are time consuming, cumbersome, and expensive. Typically, characterization requires a preliminary site assessment and subsequent sampling of potentially contaminated soils and waters. The samples are sent to laboratories for analysis using EPA-certified methods. It is often necessary to repeat the entire sampling-analysis cycle to characterize a site completely and accurately. For these reasons, new methods of site assessment and characterization are continually being researched. TWs paper describes a Fourier transform infrared (FTIR) spectroscopy method that rapidly screens soil samples from potentially hazardous waste sites. Analysis of a soil sample by FTIR takes approximately 10 minutes. The method has been developed to identify and quantify explosives in the field and is directly applicable to selected volatile organics, semivolatile organics, and pesticides. The soil samples are desorbed in a CDS 122 thermal desorption unit under vacuum into a variable pathlength, long-path cell heated to 180{degrees}C. The spectral data, 128 co-added scans at I cm{sup {minus}l} resolution, are collected and stored using a Nicolet 60SX FTIR spectrometer. Classical least squares (CLS) analysis has been used to obtain quantitative results.
- Research Organization:
- Argonne National Lab., IL (United States)
- Sponsoring Organization:
- USDOE; USDOD; USDOE, Washington, DC (United States); Department of Defense, Washington, DC (United States)
- DOE Contract Number:
- W-31109-ENG-38
- OSTI ID:
- 7086186
- Report Number(s):
- ANL/CP-76749; CONF-9208112-1; CONF-9209183-1; ON: DE92018771
- Resource Relation:
- Conference: 1992 JANNAF Safety and Environmental Subcommittee meeting; 1992 Federation of Analytical Chemistry and Spectroscopy Socieitier (FACSS) conference, Monterey, CA (United States); Philadelphia, PA (United States), 10-14 Aug 1992; 20-25 Sep 1992
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE
CHEMICAL EXPLOSIVES
DETECTION
ORGANIC COMPOUNDS
HAZARDOUS MATERIALS
INFRARED SPECTRA
MIXTURES
SOILS
VOLATILE MATTER
DISPERSIONS
EXPLOSIVES
MATERIALS
MATTER
SPECTRA
540220* - Environment
Terrestrial- Chemicals Monitoring & Transport- (1990-)
450100 - Military Technology
Weaponry
& National Defense- Chemical Explosions & Explosives