Separation and characterization of steroids in biomass vacuum pyrolysis oils
Large-scale thermochemical conversion under vacuum of various common wood species yielded a series of steroids which have rarely been reported in plants. Heating under vacuum accelerates the removal of extractives from the plant biological matrices without any significant modificatio~ Gravity-flow column liquid chromatography on silica ge~ thin-layer chroma- tography and high-resolution gas chromatography interfaced with a mass spectrometer were the principal methods used for the separation and quantitative analysis of the steroids. Identtfication was based on the bIBS mass spectra library search file and comparison with the gas chromatographic retention times of the authentic compounds. Steroid distributions of softwood and hardwood species were compared. Copyright ©
1996 Elsevier Science Ltd.
Pakdel, H. and Roy, C., "Separation and characterization of steroids in biomass vacuum pyrolysis oils" (1996). Aspen Bibliography. Paper 1684.