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Talanta

Title:		A chromatographic method to analyze products from photo-oxidation of anthropogenic and biogenic mixtures of volatile organic compounds in smog chambers
Author(s):		Pindado Jimenez O; Perez Pastor RM; Vivanco MG; Santiago Aladro M;
Address:		"Chemistry Division, Technology Department, CIEMAT Avenida Complutense 40, 28040 Madrid, Spain. oscar.pindado@ciemat.es"
Journal Title:		Talanta
Year:		2013
Volume:		20121212
Issue:
Page Number:		20 - 28
DOI:		10.1016/j.talanta.2012.11.081
ISSN/ISBN:		1873-3573 (Electronic) 0039-9140 (Linking)
Abstract:		"A method for quantifying secondary organic aerosol compounds (SOA) and water soluble secondary organic aerosol compounds (WSOA) produced from photo-oxidation of complex mixtures of volatile organic compounds (VOCs) in smog chambers by gas chromatography/mass spectrometry (GC/MS) has been developed. This method employs a double extraction with water and methanol jointly to a double derivatization with N,O-bis (trimethylsilil) trifluoroacetamide (BSTFA) and O-(2,3,4,5,6)-pentafluorobenzyl-hydroxylamine hydrochloride (PFBHA) followed by an analysis performed by GC/MS. The analytical procedure complements other methodologies because it can analyze SOA and WSOA compounds simultaneously at trace levels. As application, the methodology was employed to quantify the organic composition of aerosols formed in a smog chamber as a result of photo-oxidation of two different mixtures of volatile organic compounds: an anthropogenic mixture and a biogenic mixture. The analytical method allowed us to quantify up to 17 SOA compounds at levels higher than 20 ng m(-3) with reasonable recovery and a precision below 11%. Values found for applicability, selectivity, linearity, precision, recovery, detection limit, quantification limit and sensitivity demonstrated that the methodology can be satisfactorily applied to quantify SOA and WSOA"
Keywords:		Acetamides/chemistry Aerosols/*analysis Air Pollutants/*analysis Calibration Gas Chromatography-Mass Spectrometry/*methods Humans Hydroxylamines/chemistry Light Limit of Detection Oxidation-Reduction Photochemical Processes Smog/*analysis Volatile Organic;
Notes:		"MedlinePindado Jimenez, Oscar Perez Pastor, Rosa M Vivanco, Marta G Santiago Aladro, Manuel eng Research Support, Non-U.S. Gov't Netherlands 2013/04/20 Talanta. 2013 Mar 15; 106:20-8. doi: 10.1016/j.talanta.2012.11.081. Epub 2012 Dec 12"