Chemical characterization and screening of emission profiles of bituminous sealants using solid-phase microextraction
2006 (English)In: Energy & Fuels, ISSN 0887-0624, E-ISSN 1520-5029, Vol. 20, no 4, 1528-1535 p.Article in journal (Refereed) Published
Seven commercial bituminous sealants and their emissions were characterized with regard to chemical composition. On the basis of the results of the analysis, the sealants were ranked concerning health aspects. Chemical function groups and molecular weight distributions determined using Fourier transform infrared spectroscopy-attenuated total reflectance (FTIR-ATR) and gel permeation chromatography (GPC) indicated that bituminous material was the main component of the sealants studied. Most of the sealants investigated also contained additives originated from petroleum oil or treated vegetable oil. The emission profiles of these sealants at room temperature were obtained using the headspace solid-phase microextraction (HS-SPME) technique. The main groups of compounds found in the emissions were alkanes (C-9-C-12 normal and branched), cycloalkanes (C-1-C-5 alkylated cyclohexane and different hydronaphthalenes), aromatic hydrocarbons (C-1-C-5 alkylated benzene and C-1-C-2 alkylated naphthalene), and fatty acid methyl esters. The rankings of total emission and aromatics emission were compared. The results showed that HS-SPME is a suitable fast screening tool for emission studies, and it facilitates the selection of appropriate bituminous sealants with regard to environmental and health aspects.
Place, publisher, year, edition, pages
2006. Vol. 20, no 4, 1528-1535 p.
Bituminous materials, Characterization, Chemical analysis, Particulate emissions, Sealants, Bituminous sealants, Chemical characterization, Solid-phase microextraction
IdentifiersURN: urn:nbn:se:kth:diva-7985DOI: 10.1021/ef0600715ISI: 000239120000026ScopusID: 2-s2.0-33746912716OAI: oai:DiVA.org:kth-7985DiVA: diva2:13183
QC 201009132008-02-132008-02-132010-09-13Bibliographically approved