Table 5. Means and standard deviations of triplicate analyte amounts for
aqueous spiked samples. For each analyte with the same method of sample
preparation and analysis, values with the same letter (or no letter at all) are not
significantly different from each other at the 95% confidence level.
Analyte concentration (g)
Analyte
Spike
Ott
Ft. E
CR-A
Pt. B
MeOH extraction
8.260.25
8.230.21
8.570.10
8.230.46
8.330.17
TDCE*
8.450.24
8.150.41
8.700.16
8.420.44
8.530.28
CDCE
5.830.18
5.600.21
5.930.11
5.750.30
5.860.20
Ben
9.980.29
9.580.46
9.750.14
9.640.40
9.820.33
TCE
9.100.28
8.660.35
9.240.16
8.950.45
8.940.46
PCE
6.540.20
6.580.28
6.690.18
6.640.43
6.560.18
Tol
6.710.20
7.030.57
7.200.08
7.100.29
6.920.19
o-Xyl
6.230.26
6.080.27
6.500.16
6.380.48
6.290.40
E-Ben
6.220.14
6.270.20
6.500.16
6.550.65
6.340.31
p-Xyl
Tetraglyme extraction
8.260.25a
8.300.12a
7.760.03b
7.680.32b
8.020.28a,b
TDCE
8.450.24a
8.280.10a,b
7.930.16b
7.870.40b
8.170.18a,b
CDCE
5.830.18
5.820.12
5.570.06
5.550.17
5.620.19
Ben
9.980.29a
10.00.26a
9.420.10b
9.560.40a,b
9.380.35
TCE
9.100.28a
8.870.16a,b
8.420.36b
8.390.10b
7.640.51c
PCE
6.540.20a
6.420.14a,b
6.130.15b,c
6.140.15b,c
5.870.27c
Tol
6.710.20a
6.580.18a
6.320.42a
6.320.04a
5.030.35b
o-Xyl
6.230.26a
5.870.14a
5.480.20b
5.470.08b
4.560.25c
E-Ben
6.220.14a
6.020.13a,b
5.670.25b,c
5.530.12c
4.640.28c
p-Xyl
Heated HS analysis
8.260.25a,b
8.680.22a
8.120.41b
8.220.20a,b
8.090.20b
TDCE
8.450.24b
9.240.16a
8.560.38b
8.300.27b
6.940.08c
CDCE
5.830.18a,b
6.100.14a
5.750.26b
5.730.09b
4.470.06c
Ben
9.980.29a,b
10.50.15a
9.720.44b,c
9.280.42c
7.170.07d
TCE
9.100.28a,b
9.740.32a
8.860.46b,c
8.450.39c
5.380.29d
PCE
6.540.20b
7.000.23a
6.180.39b
6.150.05b
3.840.10c
Tol
6.710.20b
7.380.16a
5.980.28c
5.480.04d
2.240.13e
o-Xyl
6.230.26b
6.930.20a
5.680.40c
5.580.18c
2.720.06d
E-Ben
6.220.14b
6.800.16a
5.700.16c
5.400.13d
2.570.14e
p-Xyl
HS analysis of soilwater slurry preserved with NaHSO4
8.260.25a
8.350.09a
5.560.37d
7.810.21b
6.540.21c
TDCE
8.450.24a
8.370.06a
5.580.41d
7.830.17b
6.400.24c
CDCE
5.830.18a
5.830.02a
3.950.25c
5.410.12b
4.030.13c
Ben
9.980.29a
10.20.21a
6.600.74c
8.710.21b
5.210.10d
TCE
9.100.28a
9.100.07a
5.710.34b
5.850.13b
2.320.06c
PCE
6.540.20a
6.510.05a
4.340.28c
5.460.17b
2.950.08d
Tol
6.710.20a
6.620.16a
4.370.20b
3.910.15c
1.460.08d
o-Xyl
6.230.26a
6.370.08a
4.090.23b
3.990.18b
1.530.05c
E-Ben
6.220.14a
6.000.16a
3.870.26b
3.510.14c
1.310.07d
p-Xyl
HS analysis of soilwater slurry saturated with NaCl and acidified with H3PO4
8.260.25a
8.850.46a
6.740.69b
6.670.10b
4.580.09c
TDCE
8.450.24a
8.660.29a
6.450.75b
6.100.21b
3.420.04c
CDCE
5.830.18a
6.330.31a
4.710.55b
4.240.17b
2.090.20c
Ben
9.980.29a
10.80.61a
7.370.95b
5.910.39c
2.510.15d
TCE
9.100.28b
9.990.51a
5.390.34c
3.450.37d
1.240.13e
PCE
6.540.20b
7.160.28a
4.690.32c
3.200.22d
1.180.08e
Tol
6.710.20a
6.930.32a
3.330.27b
1.600.10c
0.530.02d
o-Xyl
6.230.26b
6.940.30a
3.400.18c
1.840.16d
0.620.02e
E-Ben
6.220.14a
6.540.37a
3.070.29b
1.610.14c
0.540.03d
p-Xyl
* See Table 2 for full names.
6
Previous Page
