Congener-specific determination of ultratrace levels of chlorinated and brominated polycyclic aromatic hydrocarbons in atmosphere and industrial stack gas by isotopic dilution gas chromatography/high resolution mass spectrometry methodShow others and affiliations
2017 (English)In: Journal of Chromatography A, ISSN 0021-9673, E-ISSN 1873-3778, Vol. 1509, p. 114-122Article in journal (Refereed) Published
Abstract [en]
Isotopic dilution gas chromatography combined with high resolution mass spectrometry (GC/HRMS) has overwhelming advantages with respect to the accuracy of congener-specific ultratrace analysis of complex persistent organic pollutants (POPs) in environmental matrices. However, an isotopic dilution GC/HRMS method for analysis of chlorinated and brominated polycyclic aromatic hydrocarbons (Cl-PAHs and Br-PAHs) using 13C-labelled congeners as internal standards has not been established. In this study, a method for identification and quantification of 38 congeners of Cl-PAHs and Br-PAHs in atmosphere and stack gas samples from waste incinerators was developed using the isotopic dilution GC/HRMS technique. The instrumental detection limits of the GC/HRMS method ranged from 0.2pg to 1.8pg for Cl-PAH congeners, and 0.7pg to 2.7pg for Br-PAH congeners, which were about three orders of magnitude lower than those of the GC/quadrupole MS method. This new method developed was also the first to enable determination of Cl-PAH and Br-PAH homologs comprising congeners with the same molecular skeleton and chlorine or bromine substitution numbers. Among the detected congeners, seven Cl-PAH congeners and thirteen Br-PAH congeners that were abundant in the atmosphere and stack gases released from waste incinerators were firstly detected in real samples and reported using the established isotopic dilution GC/HRMS method. The developed isotopic dilution GC/HRMS is significant and needed for better studying the environmental behavior and health risk of Cl-PAHs and Br-PAHs.
Place, publisher, year, edition, pages
Elsevier , 2017. Vol. 1509, p. 114-122
Keywords [en]
Isotopic dilution method; 13C labelled compounds; Chlorinated PAHs; Brominated PAHs; Atmosphere; Stack gas
National Category
Environmental Sciences Analytical Chemistry
Research subject
Environmental Chemistry
Identifiers
URN: urn:nbn:se:oru:diva-58623DOI: 10.1016/j.chroma.2017.06.022ISI: 000407868800013PubMedID: 28622970Scopus ID: 2-s2.0-85020458767OAI: oai:DiVA.org:oru-58623DiVA, id: diva2:1121078
Note
Funding Agencies:
Chinese National 973 Program 2015CB453100
National Natural Science Foundation of China 91543108 21477147 21361140359
United Nations Environment Programme 21361140359
Strategic Priority Research Program of the Chinese Academy of Sciences XDB14020102
Youth Innovation Promotion Association of the Chinese Academy of Sciences 2016038
2017-07-092017-07-092018-02-05Bibliographically approved