Quantitative Analysis of Hydrocarbons in Gas Oils by Two-Dimensional Comprehensive Gas Chromatography with Vacuum Ultraviolet Detection

Gas oils (GOs) analysis is essential for production process control, in order to meet quality standards, render these products safer the environment, and support research alternative fuels. GOs quantitative can be commonly achieved by employing two-dimensional comprehensive gas chromatography with flame ionization detection (GC × GC-FID) combination identification templates. However, perform quantification families which coelute GC (e.g., naphthenes/olefins or polynaphthenes/monoaromatics), prefractionation of oil before necessary. Recent introduction vacuum ultraviolet (VUV) detector has offered new possibilities analysis, as this discern between majority hydrocarbon thus possibly rendering unnecessary. Additionally, it according Beer–Lambert’s law provided that VUV relative response factors (RRFs) are known. The purpose work report, first time, RRFs numerous hydrocarbons (∼160) their family carbon number, permitting direct without necessity GO prefractionation. were measured using a GC-VUV/FID dual setup FID was employed reference. In obtain representative any oil, set 14 different origins employed. Both averaged 125–240 nm range spectral (reference spectra) obtained. It demonstrated similar allowing universal use. Obtained used light cycle (LCO) GC-VUV, olefins naphthenes being quantified through decomposition. Good comparability results obtained observed demonstrating great interest GC-VUV approach detailed rapid oils.