analytes (TNT in the Ottawa sand and 2-Am-DNT
ECD for these compounds (Fig. 4, 5). MDL
were between 1 and 3 g/kg for the amino-
and tetryl in the AEC soil). Nonetheless, the MDL
(Table 2, Table A4) were generally about 1 g/kg
nitrotoluenes, and were quite variable for the more
for the di- and trinitroaromatics and 10 times
thermally labile nitramines and nitrate esters.
higher for the mononitroaromatics, which is con-
We calculated recoveries from the higher spikes
sistent with the variable response factors of the
(Fig. 5) for those analytes that had MDL less than
1,200
AEC Soil
5 g/kg
1,000
800
600
400
200
0
0
5
10
15
Time (min)
b) AEC soil, 5 g/kg.
1,200
AEC Soil
50 g/kg
1,000
800
600
400
200
0
0
5
10
15
Time (min)
c) AEC soil, 50 g/kg.
Figure 5 (cont'd).
15
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