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1743643 
Technical Report 
Comparison of Headspace Gas Chromatography with EPA SW-846 Method of 8240 for Determination of Volatile Organic Compounds in Soil 
Hewitt, AD; Miyares, PH; Leggett, DC; Jenkins, TF 
1991 
NTIS/02976500_a 
Govt Reports Announcements & Index 
GRA and I 
GRA and I 
13 
This study compares levels of volatile organic compounds (VOCs) in a laboratory-prepared soil as determined by headspace gas chromatography and the EPA SW-846 purge and trap gas chromatography/mass spectrometry method (Method 8240). Vapor exposure was chosen as the method of contaminating the soil with trans-1,2-dichloroethylene, benzene, tricholoethylene and toluene. Preliminary results showed the concentrations of the four compounds determined by the two analytical procedures were not significantly different at the 95% confidence interval for two levels of contamination. These findings indicate that headspace gas chromatography may have significant potential for hazardous waste assessment and cleanup programs. 
Benzene; Cleaning; Contamination; Exposure(General); Hazardous materials; Organic compounds; Toluenes; Vapors; Wastes; Headspace gas chromatography; *Soil contamination; *Volatile organic compounds; *Waste management; *Gas analysis