|
Compound
|
Intra-day (repeatability)
|
Inter-day (reproducibility)
|
|---|
|
2 μg/L (n = 6)
|
5 μg/L (n = 6)
|
Day 1 (5 μg/L (n = 6))
|
Day 2 (5 μg/L (n = 6))
|
|---|
|
Measured (μg/L)
|
Recovery (%)
|
RSD (%)
|
Measured (μg/L)
|
Recovery (%)
|
RSD (%)
|
Measured (μg/L)
|
Recovery (%)
|
RSD (%)
|
Measured (μg/L)
|
Recovery (%)
|
RSD (%)
|
|---|
|
Dichloromethane
|
1.94 ± 0.05
|
95.7
|
2.55
|
4.24 ± 0.18
|
84.7
|
4.27
|
5.04 ± 0.19
|
100.9
|
3.81
|
4.92 ± 0.17
|
98.3
|
3.40
|
|
1,1-Dichloroethane
|
1.86 ± 0.09
|
93.0
|
4.73
|
4.92 ± 0.28
|
98.3
|
5.74
|
5.16 ± 0.18
|
103.2
|
3.47
|
5.01 ± 0.19
|
100.3
|
3.80
|
|
Trichloromethane
|
1.97 ± 0.07
|
98.7
|
3.41
|
4.54 ± 0.08
|
90.8
|
1.67
|
4.95 ± 0.11
|
98.9
|
2.27
|
5.10 ± 0.11
|
102.0
|
2.07
|
|
1,2-Dichloroethane
|
1.99 ± 0.05
|
99.4
|
2.34
|
4.41 ± 0.11
|
88.2
|
2.60
|
4.88 ± 0.12
|
97.5
|
2.44
|
4.78 ± 0.10
|
95.6
|
1.92
|
|
Benzene
|
1.89 ± 0.08
|
94.5
|
4.13
|
4.75 ± 0.09
|
94.9
|
1.85
|
4.89 ± 0.12
|
97.7
|
2.41
|
4.76 ± 0.17
|
95.2
|
3.46
|
|
Trichloroethene
|
2.02 ± 0.11
|
101.0
|
5.27
|
4.75 ± 0.11
|
95.1
|
2.28
|
5.06 ± 0.19
|
101.3
|
3.83
|
5.05 ± 0.29
|
101.0
|
5.75
|
|
Bromodichloromethane
|
1.89 ± 0.04
|
94.5
|
2.09
|
4.34 ± ± 0.11
|
86.7
|
2.67
|
5.09 ± 0.13
|
101.9
|
3.12
|
5.00 ± 0.09
|
100.1
|
1.72
|
|
Toluene
|
1.99 ± 0.09
|
99.4
|
4.50
|
4.65 ± 0.09
|
93.0
|
1.90
|
4.83 ± 0.25
|
96.6
|
5.10
|
4.92 ± 0.26
|
98.4
|
5.36
|
|
Dibromochloromethane
|
1.84 ± 0.02
|
92.1
|
1.19
|
4.38 ± 0.17
|
87.5
|
3.97
|
5.05 ± 0.12
|
101.0
|
2.35
|
4.93 ± 0.13
|
98.7
|
2.63
|
|
Tetrachloroethene
|
1.97 ± 0.19
|
98.5
|
9.81
|
4.20 ± 0.15
|
83.9
|
3.51
|
5.09 ± 0.35
|
101.9
|
6.79
|
5.03 ± 0.29
|
100.5
|
5.78
|
|
Tetrachloromethane
|
1.99 ± 0.03
|
99.4
|
1.52
|
4.72 ± 0.12
|
94.3
|
2.54
|
4.91 ± 0.31
|
98.1
|
6.25
|
4.95 ± 0.12
|
99.1
|
2.46
|
|
1,1,1,2-Tetrachloroethane
|
1.87 ± 0.04
|
93.4
|
2.11
|
4.32 ± 0.08
|
86.5
|
1.77
|
5.02 ± 0.15
|
100.4
|
2.92
|
4.91 ± 0.12
|
98.2
|
2.36
|
|
Ethylbenzene
|
1.97 ± 0.11
|
98.4
|
5.38
|
4.74 ± 0.08
|
94.8
|
1.76
|
4.78 ± 0.25
|
95.6
|
5.13
|
4.84 ± 0.11
|
96.9
|
2.32
|
|
P&M-Xylenea
|
4.01 ± 0.20
|
100.3
|
4.98
|
9.47 ± 0.17
|
94.7
|
1.78
|
9.87 ± 0.58
|
98.7
|
5.85
|
10.13 ± 0.66
|
101.3
|
6.75
|
|
Styrene
|
1.63 ± 0.03
|
81.5
|
1.94
|
4.36 ± 0.09
|
87.1
|
2.14
|
4.84 ± 0.12
|
96.9
|
2.45
|
4.88 ± 0.09
|
97.7
|
1.93
|
|
O-Xylene
|
2.01 ± 0.07
|
100.7
|
3.60
|
4.76 ± 0.17
|
95.1
|
3.49
|
4.77 ± 0.14
|
95.5
|
2.98
|
4.86 ± 0.05
|
97.2
|
1.53
|
|
Tribromomethane
|
1.89 ± 0.04
|
94.4
|
2.07
|
4.37 ± 0.24
|
87.3
|
5.41
|
4.64 ± 0.05
|
92.8
|
1.15
|
4.63 ± 0.13
|
92.6
|
2.70
|
|
1,1,2,2-Tetrachloroethane
|
1.71 ± 0.04
|
85.5
|
2.34
|
5.01 ± 0.17
|
100.2
|
3.33
|
4.82 ± 0.11
|
96.4
|
2.26
|
4.78 ± 0.08
|
95.6
|
1.65
|
|
Isopropylbenzene
|
1.96 ± 0.14
|
97.9
|
6.88
|
4.72 ± 0.11
|
94.4
|
2.32
|
4.77 ± 0.15
|
95.4
|
3.23
|
4.83 ± 0.13
|
96.6
|
2.59
|
|
N-Propylbenzene
|
2.01 ± 0.14
|
100.3
|
7.12
|
4.76 ± 0.12
|
95.2
|
2.41
|
4.72 ± 0.11
|
94.3
|
2.31
|
4.78 ± 0.11
|
95.7
|
2.37
|
|
1,3,5-Trimethylbenzene
|
1.99 ± 0.11
|
99.6
|
5.55
|
0.74 ± 0.11
|
94.7
|
2.28
|
5.20 ± 0.23
|
104.1
|
4.46
|
4.99 ± 0.18
|
99.8
|
3.57
|
|
1,2,4-Trimethylbenzene
|
2.04 ± 0.09
|
102.1
|
4.29
|
4.79 ± 0.21
|
95.8
|
4.39
|
5.17 ± 0.18
|
103.5
|
3.49
|
5.00 ± 0.17
|
100.1
|
3.40
|
|
1,3-Dichlorobenzene
|
2.02 ± 0.07
|
100.8
|
3.52
|
4.98 ± 0.10
|
99.6
|
2.05
|
4.83 ± 0.11
|
96.6
|
2.31
|
4.72 ± 0.16
|
94.4
|
3.44
|
|
1,4-Dichlorobenzene
|
2.02 ± 0.06
|
100.9
|
2.83
|
4.98 ± 0.16
|
99.7
|
3.15
|
4.79 ± 0.10
|
95.7
|
2.03
|
4.69 ± 0.16
|
93.9
|
3.41
|
|
1,2-Dichlorobenzene
|
1.99 ± 0.03
|
99.5
|
1.72
|
5.00 ± 0.14
|
100.0
|
2.86
|
4.70 ± 0.07
|
94.0
|
1.50
|
4.65 ± 0.14
|
93.1
|
2.93
|
|
1,3,5-Trichlorobenzene
|
2.05 ± 0.07
|
102.3
|
3.21
|
4.77 ± 0.17
|
95.4
|
3.63
|
4.77 ± 0.26
|
95.3
|
5.56
|
4.83 ± 0.36
|
96.6
|
7.52
|
|
1,2,4-Trichlorobenzene
|
2.02 ± 0.04
|
101.0
|
2.06
|
4.80 ± 0.26
|
96.0
|
5.38
|
4.63 ± 0.13
|
92.5
|
2.83
|
4.70 ± 0.12
|
94.0
|
2.64
|
|
Naphthalene
|
1.91 ±0.05
|
95.7
|
2.41
|
4.92 ± 0.36
|
98.5
|
7.40
|
4.73 ± 0.07
|
94.7
|
1.40
|
4.73 ± 0.12
|
94.7
|
2.46
|
|
Hexachloro-1,3-butadiene
|
2.01 ± 0.20
|
100.6
|
6.05
|
4.40 ± 0.22
|
88.1
|
4.91
|
4.92 ± 0.29
|
98.4
|
5.95
|
4.84 ± 0.13
|
96.8
|
2.69
|
|
1,2,3-Trichlorobenzene
|
2.07 ± 0.02
|
103.6
|
1.04
|
5.22 ± 0.36
|
104.4
|
6.93
|
4.89 ± 0.18
|
97.8
|
3.74
|
4.96 ± 0.09
|
99.3
|
1.77
|
- aMeasurement of p&m-xylene was performed for 4 μg/L and 10 μg/L VOC solutions
