title: Separation of phenol-containing pyrolysis products using comprehensive two-dimensional chromatography with columns based on pyridinium ionic liquids.
abstract: We describe the application of columns with highly polar stationary liquid phases based on pyridinium ionic liquids for the two-dimensional chromatography separation of bio-oil and product of coal pyrolysis. By using inverse combination columns-a first ionic liquid column and a second nonpolar column-good separation results have been obtained. In the analysis of coal pyrolysis products, the suggested approach provides a much better resolution between components in comparison with a less polar first-dimension column (based on polyethylene glycol). A good selectivity for the peaks of phenols is observed, and the group of phenols is well detached and separated from the group of diaromatics. A good separation picture was obtained also for bio-oil, the groups of phenols and guaiacol derivatives are distinguished with good resolution of substances within each group.
authors: Boreskov Institute of Catalysis SB RAS, Novosibirsk, Russian Federation. shashkov11@gmail.com.|Novosibirsk State University, Novosibirsk, Russian Federation. shashkov11@gmail.com.
authors: Mikhail V
authors: MV
authors: Shashkov
authors: Boreskov Institute of Catalysis SB RAS, Novosibirsk, Russian Federation.|Novosibirsk State University, Novosibirsk, Russian Federation.
authors: Vladimir N
authors: VN
authors: Sidelnikov
keywords: Bio-oil; Comprehensive two-dimensional chromatography; Ionic liquids; Polar stationary phases