Analysis of nitrated polynuclear aromatic hydrocarbons.
A derivatization-gas chromatography/electron capture detector (GC/ECD) method has been developed for the measurement of trace nitrated polynuclear aromatic hydrocarbons (NPAHs) in air. The method involves first the derivatization of parent nitro-PAHs to their corresponding fluorinated derivatives, followed by GC/ECD analysis. The sensitivity of the method is an order of magnitude higher than those of direct GC/ECD analysis of NPAHs themselves. The method is simple and robust and thus ideally suited for the routine monitoring of NPAHs in air samples. The sensitivity and reproducibility of GC/negative ion chemical ionization MS (NICIMS) for the measurement of NPAHs after derivatization has been evaluated. The method has sensitivity comparable to GC/ECD, but is less reproducible in quantification. The method is therefore suitable for method validation and NPAHs peak confirmation rather than routine operations.
Jinhui
X
X
College of Chemical Science and Technology, Sichuan University, People's Republic of China.
Lee
F S
FS
D000393:Air Pollutants / Q000032:analysis*; D002849:Chromatography, Gas / Q000379:methods*; D009566:Nitrates / Q000032:analysis / Q000737:chemistry; D011084:Polycyclic Aromatic Hydrocarbons / Q000032:analysis* / Q000737:chemistry; D012680:Sensitivity and Specificity
D000393:Air Pollutants; D009566:Nitrates; D011084:Polycyclic Aromatic Hydrocarbons