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G�ON1fiTitEX CO�ES�LTANT$ FRIEDMAN & BRUYA, INC. <br /> TYPf <br /> DEPTH ENVIRONMENTAL CHEMISTS <br /> COMMENTS <br /> Date of Report: November 15, 1995 <br /> ' Date Received: November 13, 1995 <br /> Project: C3077 <br /> Date Samples Extracted: November 13, 1995 <br /> ' Date Extracts Analyzed: November 13, 1995 <br /> RESULTS FROM THE ANALYSIS OF THE SOIL SAMPLE <br /> ' FOR FINGERPRINT CHARACTERIZATION <br /> BY CAPILLARY GAS CHROMATOGRAPHY <br /> ' USING AFLAME IONIZATION DETECTOR (FID) <br /> AND ELECTRON CAPTURE DETECTOR (ECD) <br /> SMD GC Characterization <br /> SB8-005 The GC trace using the flame ionization detector (FFD) <br /> showed the presence of low boiling compounds. The <br /> ' patterns displayed by these peaks are indicative of <br /> gasoline. The low boiling compounds appeared as a of <br /> peaks eluting from n-C to n-C 1 t showing a maximum <br /> near n-C8. The GC�FID trace showed the presence of <br /> peaks that appeared to be indicative of augmented levels <br /> of benzene, toluene and ethylbenzene, the xylenes. These <br /> compounds are characteristic of the constituents <br /> commonly found in gasoline. <br /> The large peak seen near 25 minutes on the GC/FID trace <br /> is pentacosane, added as a quality assurance check for <br /> this GC analysis. There is a second internal standard <br /> peak seen on the GC/ECD trace at about 26 minutes <br /> ' which is dibutyl chlorendate. <br /> 1 <br /> 1 <br /> 1 <br />