Laboratory generated bitumen fumes under standardized conditions: clean-up scheme and ion trap GC-MS analysis of VOC, semi-volatile and particulate PAH and PASH
Détails
ID Serval
serval:BIB_702043AED61D
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Institution
Titre
Laboratory generated bitumen fumes under standardized conditions: clean-up scheme and ion trap GC-MS analysis of VOC, semi-volatile and particulate PAH and PASH
Périodique
Journal of Occupational and Environmental Hygiene
ISSN
1545-9624
Statut éditorial
Publié
Date de publication
2007
Peer-reviewed
Oui
Volume
4
Numéro
S1
Pages
245-248
Langue
anglais
Notes
SAPHIRID:62802
Résumé
This article reports the applicability of an efficient clean-up and enrichment procedure for the determination of polycyclic aromatic compounds (PAC) including polycyclic aromatic hydrocarbons (PAH) and polycyclic aromatic sulfur heterocyclic hydrocarbons (PASH) in the gas and particulate phases in raw bitumen and bitumen fumes by gas chromatography-ion trap mass spectrometry. The scheme includes a liquid-liquid partition to eliminate the aliphatics, a solid phase extraction on SiO2 cartridge to remove the polar compounds and an HPLC fractionation to isolate the aromatic fraction. The purified extract enables the determination of PAH profile from 2 to 7 rings including their methyl derivatives and 3 carcinogenic benzonaphthothiophene isomers. The reproducibility of the method was estimated by analyzing 6 bitumen replicates and is around the 30% overall uncertainty or less. In bitumen fumes generated at 170°C under standardized conditions, VOC and semi-volatile PAH were sampled with XAD-2 tubes and were also determined in six replicates. The VOCs are mainly monoaromatic derivatives (4% of fumes) and aliphatics essentially from C6 to C17 (27%). With regards to the particulate phase PAC, the coefficients of variation from 6 replicates are 5-24% for PAH and 6-10% for PASH. Data on VOC and PASH represent new contribution in the characterization of bitumen fumes. [Authors]
Mots-clé
Polycyclic Hydrocarbons, Aromatic, Gas Chromatography, Mass Spectrometry, Spectrometry, Mass, Electrospray Ionization
Web of science
Création de la notice
18/03/2008 18:28
Dernière modification de la notice
20/08/2019 14:28