Abstract: The method was established for separation and determination of sulfur compounds in low-sulfurgasoline by gas chromatography-sulfur chemiluminescene detector (GC-SCD). The chromatographic condition for the determination of low-sulfur gasoline was optimized and the sensitivity was increased. The detection limit and reproducibility were investigated. The qualitative and quantitative assays for sulfur compounds in low-sulfur gasoline from selective hydrodesulfurization (RSDS) process and S Zorb gasoline adsorption desulfurization process were conducted by GC-SCD to demonstrate the feasibility. The methods can be applied to all kinds of catalytic gasoline fractions.

Key words: gas chromatography, sulfur chemiluminescene detector, hydrodesulfurization, sulfur compound, adsorptive desulfurization