Application of liquid-phase microextraction for the determination of sulfur compounds in crude oil and diesel.
A liquid-phase microextraction (LPME) method was for the first time developed for the determination of sulfur compounds in Arabian crude oil and diesel. A wide range of sulfur compounds, which included benzothiophene, dibenzothiophene and their derivatives, was used for model compounds. The analyses were performed by a gas chromatography equipped with a sulfur chemiluminescence detector (GC-SCD). Under optimum conditions, a linearity was achieved for the extraction sulfur compounds between 0.10 and 250μgmL(-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.
Department of Chemistry, King Fahd University of Petroleum and Minerals, P.O. Box 1509, Dhahran 31261, Saudi Arabia.
Ibrahim
I
Al-Zahrani
Department of Chemistry, King Fahd University of Petroleum and Minerals, P.O. Box 1509, Dhahran 31261, Saudi Arabia; Center of Excellence in Nanotechnology, King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabia. Electronic address: cbasheer@kfupm.edu.sa.
Chanbasha
C
Basheer
Department of Chemistry, King Fahd University of Petroleum and Minerals, P.O. Box 1509, Dhahran 31261, Saudi Arabia.
Than
T
Htun
D002849:Chromatography, Gas / Q000379:methods; D005742:Gasoline / Q000032:analysis*; D059627:Liquid Phase Microextraction; D010578:Petroleum / Q000032:analysis*; D013457:Sulfur Compounds / Q000032:analysis*; D013876:Thiophenes / Q000032:analysis
D005742:Gasoline; D010578:Petroleum; D013457:Sulfur Compounds; D013876:Thiophenes; C088015:benzothiophene; C016366:dibenzothiophene
Arabian crude oil and diesel; Gas chromatography-chemilumenscence detector; Liquid-phase microextraction; Solid-phase extraction