Optimization and Validation of Thermal Desorption Gas Chromatography-Mass Spectrometry for the Determination of Polycyclic Aromatic Hydrocarbons in Ambient Air

Figure 2

Area (in %) for LMW (low molecular weight), MMW (middle molecular weight), and HMW (high molecular weight) PAHs obtained in the study of the low trap temperature (a) and of the trap time (b) for sampling tubes packed with filter (). % Areas at −15°C and −5°C are compared to % areas at −10°C chosen as 100% (a). % Areas at 6 min and 12 min are compared to % areas at 10 min chosen as 100% (b).

(a)

(b)