Direct Analysis of Low-Volatile Molecular Marker Extract from Airborne Particulate Matter Using Sensitivity Correction Method
Author
Source
International Journal of Analytical Chemistry
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-04-04
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
Molecular marker analysis of environmental samples often requires time consuming preseparation steps.
Here, analysis of low-volatile nonpolar molecular markers (5-6 ring polycyclic aromatic hydrocarbons or PAHs, hopanoids, and n-alkanes) without the preseparation procedure is presented.
Analysis of artificial sample extracts was directly conducted by gas chromatography-mass spectrometry (GC-MS).
After every sample injection, a standard mixture was also analyzed to make a correction on the variation of instrumental sensitivity caused by the unfavorable matrix contained in the extract.
The method was further validated for the PAHs using the NIST standard reference materials (SRMs) and then applied to airborne particulate matter samples.
Tests with the SRMs showed that overall our methodology was validated with the uncertainty of ~30%.
The measurement results of airborne particulate matter (PM) filter samples showed a strong correlation between the PAHs, implying the contributions from the same emission source.
Analysis of size-segregated PM filter samples showed that their size distributions were found to be in the PM smaller than 0.4 μm aerodynamic diameter.
The observations were consistent with our expectation of their possible sources.
Thus, the method was found to be useful for molecular marker studies.
American Psychological Association (APA)
Irei, Satoshi. 2016. Direct Analysis of Low-Volatile Molecular Marker Extract from Airborne Particulate Matter Using Sensitivity Correction Method. International Journal of Analytical Chemistry،Vol. 2016, no. 2016, pp.1-10.
https://search.emarefa.net/detail/BIM-1104932
Modern Language Association (MLA)
Irei, Satoshi. Direct Analysis of Low-Volatile Molecular Marker Extract from Airborne Particulate Matter Using Sensitivity Correction Method. International Journal of Analytical Chemistry No. 2016 (2016), pp.1-10.
https://search.emarefa.net/detail/BIM-1104932
American Medical Association (AMA)
Irei, Satoshi. Direct Analysis of Low-Volatile Molecular Marker Extract from Airborne Particulate Matter Using Sensitivity Correction Method. International Journal of Analytical Chemistry. 2016. Vol. 2016, no. 2016, pp.1-10.
https://search.emarefa.net/detail/BIM-1104932
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1104932