Table A2. GC concentration estimates (g/kg) for field-contaminated soils and matrix spikes/
matrix spike duplicates (MS/MSD). 25-g soil subsamples were extracted with 50 mL of acetoni-
trile. Spiked concentration was 10 g/kg for the nitroaromatics and 40 g/kg for RDX.
Analyte
1,4-DNB
1,3-DNB
1,2-DNB
2,4-DNT
TNT
RDX
4-Am-DNT
2-Am-DNT
Eagle River Flats OB/OD Pad
Rep 1
<d
<d
<d
36.2
42.9
40.5
27.7
21.1
Rep 2
<d
<d
<d
8587
23.9
48.9
29.0
26.9
Savanna AD RCF002D
Rep 1
<d
<d
<d
24.7
149
13.6
155
159
Rep 2
<d
<d
<d
21.1
182
15.9
154
156
MS
9.3
12.2
12.9
34.6
191
46.8
176
179
MSD
8.9
11.3
14.0
29.0
185
51.5
162
174
Chickasaw (CRREL #15)
Rep 1
<d
<d
<d
140
13.2
<d
1.7
1.4
Rep 2
<d
<d
<d
148
14.0
<d
1.5
1.4
MS
5.8
7.4
*
112
18.0
22.9
6.1
6.7
MSD
4.1
5.5
*
176
15.1
14.7
4.6
4.3
Nebraska Ord. Plant (CRREL 33)
Rep 1
<d
<d
<d
<d
4.2
11.2
3.2
1.2
Rep 2
<d
<d
<d
0.96
4.7
5.6
2.0
0.85
MS
9.0
11.4
10.3
14.3
60.4
80.0
24.6
15.6
MSD
3.6
5.0
4.4
5.1
10.6
18.1
5.9
3.8
Nebraska Ord. Plant (CRREL 38)
Rep 1
<d
3.41
<d
95.2
124
8.7
23.5
14.9
Rep 2
<d
6.85
<d
212
273
17.9
46.5
32.7
US Naval AD (#12728)
Rep 1
<d
<d
<d
0.99
1.8
3.6
<d
<d
Rep 2
<d
<d
<d
1.24
2.0
3.5
<d
<d
MS
9.1
11.6
11.0
11.3
11.1
27.0
7.9
8.5
MSD
9.2
11.6
10.9
11.1
11.4
29.0
8.2
9.0
US Naval AD (#12731)
Rep 1
<d
5.6
<d
<d
1.6
<d
<d
<d
Rep 2
<d
6.0
<d
<d
2.7
<d
<d
<d
MS
8.7
12.9
10.1
10.5
11.5
30.3
7.8
8.6
MSD
8.7
13.1
10.2
10.6
10.2
29.1
7.4
8.5
*Large peak corresponding to 2,6-DNT interfered with determination of 1,2-DNB.
33
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