Table B10. Analyses (ng/g [ppb] wet weight) of spiked
replicates of summer flounder muscle for determination of the method
detection limit (MDL) for PCB congeners
BZ #
1
8
18
29
50
28
52
104
44
66
101
118
188
153
105
138
126
187
128
200
180
170
195
206
209
Replicate 1
3.57
6.54
5.91
6.49
6.15
6.65
6.77
7.03
6.89
10.2
9.76
11.3
8.94
11.4
10.0
10.9
12.1
9.95
10.2
9.13
10.5
10.4
10.2
9.92
8.17
Replicate 2
3.36
6.59
5.90
6.32
6.14
6.49
6.70
6.87
6.76
9.46
9.08
10.5
8.34
10.7
9.10
10.1
10.9
9.14
9.40
8.35
9.71
9.62
9.42
9.58
7.97
Replicate 3
2.82
6.30
5.79
6.22
6.16
6.48
6.65
6.98
6.83
9.07
8.51
9.95
7.76
10.0
8.69
9.52
9.92
8.34
8.87
7.96
9.30
9.18
9.02
9.21
7.61
Replicate 4
2.94
5.83
5.00
5.44
5.28
5.56
5.64
5.81
5.74
9.24
8.66
10.2
8.06
10.3
8.99
9.73
10.7
8.52
9.04
8.07
9.37
9.21
9.05
9.26
7.82
Replicate 5
3.35
6.75
6.34
6.35
6.30
6.50
6.60
6.93
6.65
9.04
8.41
9.94
7.83
9.93
8.85
9.65
10.1
8.41
8.85
7.98
9.29
9.08
9.01
9.37
7.94
Replicate 6
2.60
5.95
5.34
5.60
5.51
5.80
5.90
6.24
6.05
8.67
8.23
10.2
7.71
9.91
8.76
9.43
10.1
8.28
8.72
7.92
9.24
8.93
8.94
9.38
8.06
Replicate 7
3.07
5.61
6.27
7.06
7.21
7.57
8.51
8.95
8.52
8.72
8.73
11.2
8.76
11.1
9.66
10.7
11.5
9.93
10.0
9.68
11.0
10.7
11.0
11.3
9.78
Mean
3.10
6.23
5.79
6.21
6.11
6.43
6.68
6.97
6.78
9.19
8.77
10.5
8.20
10.5
9.16
10.0
10.8
8.94
9.30
8.44
9.78
9.60
9.51
9.71
8.19
Std. dev.
0.34
0.43
0.48
0.55
0.62
0.65
0.92
0.99
0.88
0.51
0.51
0.56
0.50
0.62
0.51
0.57
0.82
0.74
0.60
0.69
0.71
0.71
0.78
0.73
0.72
RSD (%)
11
6.9
8.3
8.9
10
10
14
14
13
5.5
5.9
5.3
6.0
5.9
5.5
5.7
7.6
8.3
6.5
8.2
7.3
7.4
8.2
7.5
8.8
MDLa
1.1
1.4
1.5
1.7
1.9
2.0
2.9
3.1
2.8
1.6
1.6
1.8
1.6
1.9
1.6
1.8
2.6
2.3
1.9
2.2
2.2
2.2
2.5
2.3
2.3
aMDL t, where = standard deviation and t =
Student's "t" value of 3.143 with n-1 degrees of freedom and = 0.01 (one
tailed).