Quantification of Hydrocarbons in Gas Oils by GC×GC-VUV: Comparison with Other Techniques

Insight into the composition of middle distillates is essential to meet requirements for product quality but also in terms complying with ever more stringent environmental regulations. A newly introduced vacuum ultraviolet absorbance detector (VUV) possesses both quantitative and qualitative abilities amenable hyphenation comprehensive two-dimensional gas chromatography (GC×GC). It has good selectivity hydrocarbon species permits their differentiation even if they are not chromatographically separated. In this study, quantification hydrocarbons 14 oils coming from different origins was performed evaluate benefits GC×GC-VUV analysis distillates. Coelutions between families were investigated spectral decomposition carried out coeluted families. Quantification obtained compared conventional techniques such as GC×GC-FID prefractionation, MS method based on ASTM D2425, UV spectroscopic analysis, bromine number. general, comparability all major families, however a gain time and/or information when using GC×GC-VUV. This demonstrates that can be considered relevant tool detailed distillates, regardless origin.