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Table 7. Percent Accuracy of Surrogate Predictions for Oil Using Water and Vacuum Spikes
| Table 7. Percent Accuracy of Surrogate Predictions for Oil Using Water and Vacuum Spikes | ||||||
| vacuum spike | water spike | |||||
| compound |  |
 |
 |
 |
 |
 |
| dichlorodifluoromethane |
72
|
31
|
33
|
2900
|
380
|
26
|
| chloromethane |
100
|
9
|
39
|
71
|
9
|
1
|
| vinyl chloride |
103
|
8
|
37
|
73
|
6
|
1
|
| bromomethane |
114
|
11
|
37
|
83
|
20
|
0
|
| chloroethane |
113
|
9
|
36
|
78
|
27
|
1
|
| trichlorofluoromethane |
92
|
28
|
36
|
32
|
18
|
0
|
| diethyl ether |
114
|
1
|
38
|
97
|
5
|
3
|
| acetone-d6 |
131
|
34
|
50
|
143
|
17
|
24
|
| acrolein |
136
|
151
|
10
|
19
|
6
|
1
|
| acetone |
111
|
87
|
18
|
31
|
12
|
4
|
| 1,1-dichloroethene |
106
|
6
|
33
|
86
|
3
|
1
|
| iodomethane |
107
|
6
|
32
|
95
|
5
|
1
|
| allyl chloride |
103
|
16
|
30
|
84
|
11
|
1
|
| acetonitrile |
143
|
44
|
45
|
420
|
70
|
67
|
| methylene chloride-d6 |
108
|
9
|
31
|
96
|
6
|
2
|
| methylene chloride |
107
|
7
|
32
|
94
|
9
|
2
|
| acrylonitrile |
119
|
14
|
42
|
113
|
9
|
18
|
| trans-1,2-dichloroethene |
106
|
13
|
30
|
86
|
3
|
0
|
| 1,1-dichloroethane |
104
|
3
|
33
|
97
|
2
|
1
|
| methacrylonitrile |
107
|
4
|
37
|
106
|
5
|
4
|
| 2-butanone |
92
|
24
|
38
|
109
|
11
|
16
|
| propionitrile |
115
|
15
|
41
|
118
|
6
|
18
|
| ethyl acetate-2C13 |
111
|
7
|
39
|
119
|
7
|
4
|
| 2,2-dichloropropane |
106
|
2
|
36
|
103
|
2
|
1
|
| cis-1,2-dichloroethene |
103
|
8
|
31
|
95
|
2
|
1
|
| chloroform |
103
|
2
|
34
|
103
|
2
|
2
|
| isobutanol |
94
|
7
|
35
|
87
|
8
|
15
|
| bromochloromethane |
105
|
6
|
34
|
102
|
3
|
2
|
| 1,1,1-trichloroethane |
105
|
3
|
37
|
103
|
3
|
1
|
| 1,1-dichloropropene |
96
|
13
|
30
|
83
|
3
|
2
|
| carbon tetrachloride |
105
|
4
|
37
|
108
|
2
|
1
|
| benzene-d6 |
103
|
3
|
34
|
100
|
2
|
1
|
| 1,2-dichloroethane |
104
|
6
|
35
|
99
|
3
|
3
|
| benzene |
101
|
71
|
18
|
42
|
7
|
0
|
| trichloroethene |
104
|
6
|
38
|
109
|
3
|
1
|
| 1,2-dichloropropane-d6 |
115
|
24
|
31
|
141
|
25
|
3
|
| 1,2-dichloropropane |
95
|
15
|
30
|
78
|
4
|
2
|
| methyl methacrylate |
99
|
7
|
35
|
99
|
3
|
4
|
| bromodichloromethane |
103
|
7
|
38
|
109
|
1
|
2
|
| 1,4-dioxane |
105
|
4
|
38
|
113
|
16
|
18
|
| dibromomethane |
102
|
3
|
37
|
105
|
4
|
4
|
| 4-methyl-2-pentanone |
98
|
3
|
35
|
105
|
5
|
4
|
| trans-1,3-dichloropropene |
97
|
2
|
34
|
97
|
2
|
4
|
| toluene |
89
|
31
|
25
|
61
|
6
|
2
|
| pyridine |
118
|
3
|
40
|
173
|
127
|
56
|
| cis-1,3-dichloropropene |
101
|
6
|
39
|
106
|
1
|
4
|
| ethyl methacrylate |
95
|
4
|
34
|
92
|
2
|
4
|
| N-nitrosodimethylamine |
126
|
151
|
6
|
53
|
14
|
2
|
| 1,1,2-trichloroethane-d3 |
102
|
14
|
44
|
114
|
3
|
5
|
| 2-hexanone |
90
|
5
|
32
|
94
|
5
|
3
|
| 1,1,2-trichloroethane |
103
|
15
|
44
|
112
|
3
|
5
|
| tetrachloroethene |
108
|
29
|
44
|
146
|
2
|
2
|
| 1,3-dichloropropane |
97
|
6
|
38
|
101
|
3
|
4
|
| dibromochloromethane |
100
|
17
|
42
|
117
|
2
|
4
|
| 2-picoline |
98
|
24
|
26
|
300
|
220
|
70
|
| 1,2-dibromoethane |
91
|
5
|
36
|
94
|
2
|
3
|
| chlorobenzene |
91
|
11
|
34
|
99
|
1
|
2
|
| 1,1,1,2-tetrachloroethane |
101
|
25
|
41
|
120
|
3
|
2
|
| ethylbenzene |
88
|
8
|
32
|
88
|
2
|
1
|
| N-nitroso-methyl-ethylamine |
84
|
82
|
9
|
52
|
13
|
6
|
| m,p-xylenes |
83
|
2
|
30
|
82
|
2
|
1
|
| styrene |
87
|
18
|
34
|
98
|
1
|
2
|
| o-xylene |
83
|
10
|
31
|
87
|
2
|
1
|
| isopropylbenzene |
83
|
19
|
34
|
92
|
4
|
1
|
| bromoform |
91
|
26
|
42
|
113
|
3
|
4
|
| cis-1,4-dichloro-2-butene |
85
|
20
|
38
|
97
|
3
|
4
|
| N-nitrosodiethylamine |
59
|
38
|
13
|
45
|
9
|
6
|
| 1,1,2,2-tetrachloroethane |
107
|
48
|
59
|
121
|
7
|
4
|
| 4-bromo-1-fluorobenzene |
88
|
26
|
37
|
108
|
2
|
2
|
| 1,2,3-trichloropropane |
78
|
16
|
36
|
97
|
4
|
4
|
| n-propylbenzene |
77
|
16
|
32
|
82
|
3
|
1
|
| trans-1,4-dichloro-2-butene |
88
|
26
|
40
|
105
|
3
|
4
|
| 1,3,5-trimethylbenzene |
82
|
30
|
38
|
107
|
10
|
2
|
| bromobenzene |
83
|
22
|
34
|
102
|
2
|
2
|
| 2- chlorotoluene |
102
|
44
|
43
|
129
|
4
|
1
|
| 4-chlorotoluene |
84
|
30
|
37
|
107
|
2
|
2
|
| pentachloroethane |
104
|
51
|
52
|
123
|
6
|
3
|
| tert-butulbenzene |
139
|
18
|
11
|
83
|
38
|
2
|
| 1,2,4-trimethylbenzene |
73
|
19
|
31
|
79
|
5
|
2
|
| sec-butylbenzene |
90
|
42
|
43
|
112
|
12
|
4
|
| aniline |
NAe
|
NA
|
||||
| p-isopropyltoluene |
NA
|
NA
|
||||
| 1,3-dichlorobenzene |
105
|
57
|
51
|
142
|
4
|
5
|
| 1,4-dichorobenzene |
89
|
43
|
45
|
115
|
4
|
5
|
| n-butylbenzene |
76
|
35
|
39
|
95
|
4
|
5
|
| 1,2-dichlorobenzene |
66
|
22
|
32
|
84
|
10
|
5
|
| benzyl alcohol |
NA
|
NA
|
||||
| N-nitroso-di-n-propylamine |
35
|
4
|
14
|
37
|
8
|
7
|
| acetophenone-d5 |
46
|
16
|
24
|
57
|
10
|
11
|
| o-toluidine |
100
|
57
|
44
|
93
|
60
|
31
|
| 1,2-dibromo-3-chloropropane |
86
|
50
|
49
|
119
|
20
|
8
|
| hexachlorobutadiene |
57
|
34
|
43
|
84
|
4
|
14
|
| 1,2,4-trichlorobenzene |
77
|
49
|
52
|
106
|
6
|
16
|
| naphthalene-d8 |
47
|
26
|
39
|
76
|
9
|
17
|
| naphthalene |
53
|
32
|
48
|
81
|
10
|
21
|
| 1,2,3-trichlorobenzene |
90
|
61
|
76
|
125
|
5
|
33
|
| N-nitrosodibutylamine |
21
|
21
|
18
|
5
|
9
|
8
|
| 2-methylnaphthalene |
8
|
10
|
500
|
15
|
37
|
110
|
a Average of three replicate analyses of 1 g cod liver oil.
b Standard deviation (1 sigma) of replicate analyses.
c Average variation between predictions of the surrogate pairs for the
replicate analyses.
d Average of seven replicate analyses of 1 g cod liver oil.
e NA = compound could not be accurately measured due to spectral interferences.