Table 1 The comparison of the peak area calculated from these chromatograms
Benzene | Toluene | Ethylbenzene | Styrene | Pentane | Nonane | Decane | |
|---|---|---|---|---|---|---|---|
Peak area with pre-concentrator | 18.072 | 12.726 | 1.807 | 0.151 | 0.376 | 4.066 | 3.050 |
Peak area without pre-concentrator | 2.048 | 1.355 | 0.226 | - | - | 0.750 | 0.338 |
Concentrator factor | 8.8 | 9.4 | 8 | - | - | 5.5 | 9 |