University of North Florida
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Stuart Chalk, Ph.D.
Department of Chemistry
University of North Florida
Phone: 1-904-620-1938
Fax: 1-904-620-3535
Website: @unf

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Diesel Soot

Classification: Oil -> petroleum -> diesel -> soot

Citations 1

"Determination Of Polycyclic Aromatic Hydrocarbons In Diesel Soot By High Performance Liquid Chromatography"
Fresenius J. Anal. Chem. 1991 Volume 340, Issue 1 Pages 27-30
H.-J. Götze Contact Information, J. Schneider and H.-G. Herzog

Abstract: Soot particles from exhaust fumes are collected by blowing exhaust gases for 2 min through an Al collection apparatus containing a borosilicate - glass-fiber extraction thimble. The sample is extracted with CHCl2 for 2 h in a Soxtec extractor, the extract is cleaned up on a SiO2 column (20 cm x 11 mm), eluted with CHCl2 and the eluate was treated with Al2O3 and evaporated to dryness. The residue is placed on top of an alumina column and PAHs are separated by elution with benzene, CHCl3 - 1% ethanol and methanol. These fractions were further analyzed by reversed-phase HPLC on a column (25 cm x 1 mm) of Nucleosil RP 18 (5 µm) with a mobile phase (30 µL min-1) of methanol - THF - water (49:21:30) and detection at 254 nm for the benzene fraction and fluorescence detection at 370 nm (excitation at 289 nm) for the CHCl3 fraction after post-column derivatization. The calibration graph was rectilinear over three orders of magnitude and the detection limit was 0.05 pg to 0.3 ng.
Hydrocarbons, aromatic, polycyclic HPLC Fluorescence Sample preparation Column Extraction Post-column derivatization