Isolation of mononitrated polycyclic aromatic hydrocarbons in particulate matter by liquid chromatography and determination by gas chromatography with the thermal energy analyzer

1984 ◽  
Vol 56 (4) ◽  
pp. 781-786 ◽  
Author(s):  
Bruce A. Tomkins ◽  
Roswitha S. Brazell ◽  
Mary E. Roth ◽  
Vanessa H. Ostrum
Keyword(s):  
Gas Chromatography ◽  
Polycyclic Aromatic Hydrocarbons ◽  
Liquid Chromatography ◽  
Particulate Matter ◽  
Thermal Energy ◽  
Aromatic Hydrocarbons ◽  
Energy Analyzer ◽  
Polycyclic Aromatic

scholarly journals Chemical characterization and stable carbon isotopic composition of particulate Polycyclic Aromatic Hydrocarbons issued from combustion of 10 Mediterranean woods

2013 ◽  
Vol 13 (5) ◽  
pp. 2703-2719 ◽  
Author(s):  
A. Guillon ◽  
K. Le Ménach ◽  
P.-M. Flaud ◽  
N. Marchand ◽  
H. Budzinski ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Polycyclic Aromatic Hydrocarbons ◽  
Particulate Matter ◽  
Aromatic Hydrocarbons ◽  
Diagnostic Ratios ◽  
Wood Combustion ◽  
Polycyclic Aromatic ◽  
Molecular Profiles ◽  
Isotopic Measurements

Abstract. The objectives of this study were to characterize polycyclic aromatic hydrocarbons from particulate matter emitted during wood combustion and to determine, for the first time, the isotopic signature of PAHs from nine wood species and Moroccan coal from the Mediterranean Basin. In order to differentiate sources of particulate-PAHs, molecular and isotopic measurements of PAHs were performed on the set of wood samples for a large panel of compounds. Molecular profiles and diagnostic ratios were measured by gas chromatography/mass spectrometry (GC/MS) and molecular isotopic compositions (δ13C) of particulate-PAHs were determined by gas chromatography/combustion/isotope ratio mass spectrometry (GC/C/IRMS). Wood species present similar molecular profiles with benz(a)anthracene and chrysene as dominant PAHs, whereas levels of concentrations range from 1.8 to 11.4 mg g−1 OC (sum of PAHs). Diagnostic ratios are consistent with reference ratios from literature but are not sufficient to differentiate the species of woods. Concerning isotopic methodology, PAH molecular isotopic compositions are specific for each species and contrary to molecular fingerprints, significant variations of δ13C are observed for the panel of PAHs. This work allows differentiating wood combustion (with δ13CPAH = −28.7 to −26.6‰) from others origins of particulate matter (like vehicular exhaust) using isotopic measurements but also confirms the necessity to investigate source characterisation at the emission in order to help and complete source assessment models. These first results on woodburnings will be useful for the isotopic approach to source tracking.

Sign in / Sign up

Export Citation Format

Share Document