Table A6. NG and PETN concentrations (g/kg) found in spiked soils (2 g) extracted with 10 mL acetonitrile for 2 hr and 18 hr in a cooled sonic bath. Target concentration was 50 g/kg.

Table A5. Found concentrations (g/kg) and recoveries determined from 2-g spiked soil samples extracted with 10 mL acetonitrile by 18 hr of sonication. Target concentration was 50 g/kg.

Table A7. Method detection limits from 25 g Ottawa sand aged 1 hr after spiking and then extracted with 50 mL acetontrile (3,4-DNT internal standard).

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Table A6. NG and PETN concentrations (g/kg) found

in spiked soils (2 g) extracted with 10 mL acetonitrile

for 2 hr and 18 hr in a cooled sonic bath. Target con-

centration was 50 g/kg.

Found concentration (g/kg)

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