Simultaneous extraction and fractionation of polycyclic aromatic hydrocarbons and their oxygenated derivatives in soil using selective pressurized liquid extraction

Analytical Chemistry
Staffan LundstedtLars Oberg

Abstract

In this study, a selective pressurized liquid extraction (PLE) method which can extract polycyclic aromatic hydrocarbons (PAHs) and their oxygenated derivatives (oxy-PAHs) from contaminated soil and simultaneously separate them into two fractions was developed. The method uses extraction cells packed with a chromatographic adsorbent and extraction solvents of increasing polarity. Several experiments were conducted on both spiked and authentic contaminated soil samples. Different types of adsorbents, combinations of extraction solvents, and extraction temperatures were tested in order to find a method that could fulfill the purpose of the study. The final method was based on extraction cells packed with 2% deactivated silica gel. The PAHs were extracted with cyclohexane/dichloromethane (9:1) at 120 degrees C, after which the oxy-PAHs where extracted with cyclohexane/dichloromethane (1:3) at 150 degrees C. The PAHs and oxy-PAHs were efficiently separated into two fractions, and only trace amounts of some compounds were found in the inappropriate fraction. The recoveries of the PAHs were mostly above 70% and of the oxy-PAHs, above 90%. The linearity of the method was good, and the calibration curves for most compounds had a regres...Continue Reading

References

Dec 23, 1998·Environmental Health Perspectives·L R BrooksF Kremer
Jul 26, 2000·Journal of Chromatography. a·S LundstedtL Oberg
Oct 24, 2000·Journal of Chromatography. a·Z ZdráhalJ Vejrosta

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Citations

Sep 5, 2008·Journal of Photochemistry and Photobiology. A, Chemistry·Pura Sotero, Rafael Arce
Dec 3, 2014·Rapid Communications in Mass Spectrometry : RCM·Xuan ZhouGuangming Huang
Mar 11, 2009·Environmental and Molecular Mutagenesis·Christine L LemieuxIain B Lambert
Aug 17, 2011·Analytica Chimica Acta·Arwa Mustafa, Charlotta Turner
May 1, 2013·Chemico-biological Interactions·Paweł BrzuzanMaciej Woźny
Jul 31, 2016·Environmental and Molecular Mutagenesis·Alexandra S LongPaul A White
Mar 31, 2015·Applied and Environmental Microbiology·Elyse A Rodgers-VieiraMichael D Aitken
Nov 19, 2018·Environmental Science and Pollution Research International·Marine BoulangéPierre Faure
Sep 14, 2010·Journal of Environmental Quality·Benjamin A Musa Bandowe, Wolfgang Wilcke
Sep 13, 2019·Critical Reviews in Toxicology·Adeline ClergéRaphaël Delépée
Nov 25, 2014·Environmental Science & Technology·Christine L LemieuxPaul A White
Jan 8, 2019·Environmental Pollution·Sarah McCarrickKristian Dreij

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