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Determination of polycyclic aromatic hydrocarbons (PAHs) in used lubricating car oils  

Yoo, Kwang-Sik (School of chemistry and biological science, University of Ulsan)
Jyoung, Ji-Young (School of chemistry and biological science, University of Ulsan)
Jeong, Seon-Yi (School of chemistry and biological science, University of Ulsan)
Woo, Sang-Beom (School of chemistry and biological science, University of Ulsan)
Publication Information
Analytical Science and Technology / v.16, no.5, 2003 , pp. 339-348 More about this Journal
Abstract
Determination of some PAHs in used engine oils have been carried out by extraction of the components into acetonitrile followed by GC/FID and synchronous spectrofluorimetric technique. 7 PAHs, such as acenaphthene (Ace), anthracene (Anth), benzo(a)pyrene (BaP), chrysene (Chry), phenanthrene (Phen), fluoranthene (Ft), and perlyrene (Per) in used engine oil sample were able to determine separately by synchronous spectrofluorimetry. Calibration curves for those components were linear for the concentration range of 0.4~166 ppb PAHs with the corelation factor of 0.9985~0.9999. The peak areas produced by GC/FID split ratio program were used for the calibration curves of the other 8 PAHs. Detection sensitivity of the synchronous spectrofluorimetry seems to be 100 times more sensitive than GC/FID method. The total amount of PAHs in the used engine oil were 5.5 ng/g for LNG (bus), 10.5 ng/g for LPG(taxi), 92.2 ng/g for gasoline-passenger car, and 130 ng/g for diesel trailer, respectively.
Keywords
Synchronous Fluorescence Spectrometry PAHs (polycyclic aromatic hydrocarbons); Used lubricating oil;
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