Tuesday, May 5, 2015

Application of liquid-phase microextraction for the determination of sulfur compounds in crude oil and diesel

CATEGORY: CRUDE OIL ANALYSIS
Application of liquid-phase microextraction
 for the determination of sulfur compounds in crude oil and diesel

Type
Journal Article
Author
Ibrahim Al-Zahrani
Author
Chanbasha Basheer
Author
Dhahran, Saudi Arabia King Fahd University of Petroleum and Minerals
URL
Volume
1330
Pages
97-102
Publication
Journal of Chromatography A
Date
February 21, 2014
Abstract
Describes a liquid-phase microextraction (LPME) method for the determination of sulfur compounds in Arabian crude oil and diesel. Researchers employed a range of sulfur compounds, including benzothiophene, dibenzothiophene and their derivatives, for model compounds.
They conducted analyses by gas chromatography equipped with a sulfur chemiluminescence detector (GC-SCD). Under optimum conditions, they obtained a linearity for the extraction of sulfur compounds between 0.10 and 250 μg mL−1 with the correlation of determination ranging from 0.98 to 0.99. Applying the same optimum conditions, the extraction of 77–91% of the sulfur compounds in the Arabian light, Arabian medium and Arabian heavy, and diesel was achieved.

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