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Table 2 Linearity, LODs, LOQs, and accuracy study of VOCs

From: Method validation and measurement uncertainty of possible thirty volatile organic compounds (VOCs) presented in the polyethylene present in bottled drinking waters sold in Turkey

Compound Coefficient correlation (r2) Calibration curve equation (y = ax + b) Linear dynamic range (μg/L) LOD (μg/L) LOQ (μg/L) Mean recovery (%) RSD (%)
Dichloromethane 0.9991 y = 18054x + 213661 2.00–20.00 0.024 0.079 88.9 4.62
1,1-Dichloroethane 0.9998 y = 32546x − 500.11 0.15–20.00 0.023 0.076 92.7 7.17
Trichloromethane 0.9998 y = 34184x − 5046.6 0.15–20.00 0.019 0.063 95.1 4.16
1,2-Dichloroethane 0.9996 y = 13031x − 2191.5 0.15–20.00 0.036 0.120 93.3 2.65
Benzene 0.9997 y = 75303x + 9609.7 0.15–20.00 0.019 0.065 92.5 5.69
Trichloroethene 0.9990 y = 24918x − 6931.5 0.15–20.00 0.027 0.091 91.9 7.86
Bromodichloromethane 0.9988 y = 20290x − 8183.6 0.15–20.00 0.029 0.097 90.7 2.97
Toluene 0.9996 y = 97609x + 97944 0.25–20.00 0.017 0.058 94.0 6.14
Dibromochloromethane 0.9983 y = 10346x − 5086.4 0.15–20.00 0.039 0.130 88.9 3.41
Tetrachloroethene 0.9999 y = 22962x − 363.87 0.15–20.00 0.024 0.080 87.2 7.91
Tetrachloromethane 0.9993 y = 12673x − 3735.9 0.15–20.00 0.021 0.071 94.6 2.48
1,1,1,2-Tetrachloroethane 0.9993 y = 17912x − 5135 0.15–20.00 0.028 0.093 88.1 3.66
Ethylbenzene 0.9999 y = 121781x + 6841.1 0.15-20.00 0.015 0.050 92.7 6.17
P&M-Xylenea 0.9997 y = 44856x − 9081.3 0.30–40.00 0.011 0.037 95.1 7.14
Styrene 0.9999 y = 57766x − 10087 0.15–20.00 0.014 0.047 82.6 3.29
O-Xylene 0.9998 y = 93040x − 2895.5 0.15–20.00 0.021 0.071 95.9 4.58
Tribromomethane 0.9989 y = 4559.6x − 1681.6 0.15–20.00 0.035 0.116 89.4 3.19
1,1,2,2-Tetrachloroethane 0.9995 y = 8716.6x − 2753.5 0.15–20.00 0.040 0.133 91.3 2.65
Isopropylbenzene 0.9996 y = 133550x + 18469 0.15–20.00 0.012 0.038 91.9 6.98
N-Propylbenzene 0.9998 y = 236680x + 35492 0.15–20.00 0.016 0.054 94.3 7.83
1,3,5-Trimethylbenzene 0.9999 y = 112267x + 11792 0.15–20.00 0.016 0.056 95.0 7.24
1,2,4-Trimethylbenzene 0.9998 y = 107730x + 14524 0.15–20.00 0.015 0.045 97.4 5.65
1,3-Dichlorobenzene 0.9996 y = 44536x − 5264.9 0.15–20.00 0.013 0.043 98.6 3.04
1,4-Dichlorobenzene 0.9996 y = 39184x − 2500.3 0.15–20.00 0.019 0.061 99.2 3.71
1,2-Dichlorobenzene 0.9999 y = 31839x − 3378.3 0.15–20.00 0.011 0.035 98.4 2.61
1,3,5-Trichlorobenzene 0.9999 y = 31299x + 168.14 0.15–20.00 0.012 0.041 97.1 4.98
1,2,4-Trichlorobenzene 0.9999 y = 17134x − 2202.7 0.15–20.00 0.014 0.047 96.6 4.01
Naphthalene 0.9997 y = 17499x − 5484.5 0.15–20.00 0.012 0.040 95.3 5.22
Hexachloro-1,3-butadiene 0.9994 y = 16910x + 2436.6 0.15–20.00 0.025 0.083 93.8 9.19
1,2,3-Trichlorobenzene 0.9997 y = 9467.3x − 894.31 0.15–20.00 0.021 0.069 103.1 4.51
  1. aIn accuracy study, measurements of p&m-xylene were performed for 2 μg/L, 4 μg/L and 10 μg/L standard solutions
  2. RSD: relative standard deviation