Table 2. Limit of detection (LOD), limit of quantification (LOQ), linear dynamic range and precision (% RSD) of the analytical methods used.
Compound | LOD (ng) | LOQ (ng) | Linear dynamic range (ng) | RSD (%) |
ATD/GC/MS Method 1 | ||||
Aromatic hydrocarbons | ||||
Benzene | 1.9 | 6.25 | 6.25–1250 | 19 |
Ethylbenzene | 1.9 | 6.25 | 6.25–1250 | 13 |
m,p-Xylene | 3.8 | 12.5 | 12.5–2500 | 20 |
o-Xylene | 1.9 | 6.25 | 6.25–1250 | 20 |
Styrene | 0.04 | 0.12 | 0.2–40 | 11 |
Toluene | 1.9 | 6.25 | 6.25–625 | 20 |
1,2,4-Trimethylbenzene | 0.02 | 0.06 | 0.1–20 | 13 |
Naphtalene | 0.6 | 2 | 2–400 | 11 |
Phenol | 0.4 | 1.3 | 1.5–300 | 18 |
Halogenated hydrocarbons | ||||
1,1,1-Trichloroetane | 0.2 | 0.8 | 1–200 | 5 |
Trichloroethylene | 0.6 | 2 | 2–400 | 11 |
Chloroform | 0.4 | 1.25 | 1.25–250 | 12 |
1,4-Dichlorobenzene | 0.1 | 0.3 | 0.5–100 | 19 |
Alcohols | ||||
Ethanol | 0.6 | 2.1 | 80–16000 | 17 |
Isopropanol | 1.5 | 4.9 | 10–2000 | 18 |
Propanol | 1.4 | 4.7 | 5–1000 | 16 |
2-Ethyl-1-hexanol | 0.2 | 0.7 | 1–200 | 16 |
2-Phenoxyethanol | 0.06 | 0.2 | 0.2–40 | 19 |
Aldehyde | ||||
Acrolein | 0.09 | 0.3 | 0.3–60 | 10 |
Ketones | ||||
Acetone | 0.03 | 0.09 | 5–1000 | 15 |
2-Butanone | 0.02 | 0.07 | 5–1000 | 8 |
Cyclohexanone | 0.05 | 0.15 | 0.5–100 | 20 |
ATD/GC/MS Method 2 | ||||
Aliphatic hydrocarbons | ||||
n-Hexane | 3 | 10 | 10–1000 | 20 |
Cyclohexane | 3 | 10 | 10–1000 | 9 |
n-Heptane | 3 | 10 | 10–1000 | 2 |
n-Decane | 15 | 50 | 50–1000 | 3 |
n-undecane | 15 | 50 | 50–1000 | 5 |
Ethers | ||||
Ether | 3 | 10 | 10–1000 | 2 |
2-Ethoxyethanol | 3 | 10 | 10–1000 | 3 |
2-Butoxyethanol | 15 | 50 | 50–1000 | 9 |
Halogenated hydrocarbon | ||||
1-Bromopropane | 3 | 10 | 10–1000 | NA |
Terpene | ||||
Limonene | 15 | 50 | 50–1000 | 13 |
NA: Not available.