Effect of oxygen on composition of light hydrocarbons evolved in oil shale pyrolysis

Class separation and characterization of shale oil by liquid chromatography and capillary column gas chromatography

“…Early high-performance liquid chromatographic (HPLC) methods were designed to measure limonin only, as it was not known if other limonoids existed in juice. The first method (14) used a 10-µ porous silica packing with a refractive index detector. The solvent system was chloroform-acetonitrile (95:5 v/v).…”

Effects of Surface Chemistry on the Porous Structure of Coal

“…Spherocarb is a high-surface-area (~900 m 2 /g) carbon with significant micro-and macroporosity (Waters et al, 1988). Used as a gas chromatography column packing, Spherocarb separates light hydrocarbons (Robillard et al, 1979). 129 Xe spectra of Spherocarb are shown in The anthracite sample, in two particle sizes, was used to compare changes in 129 Xe chemical shift, linewidth, and xenon uptake.…”

“…It is a high-surface-area carbon material designed for use as a gas chromatography column packing. It is reported to separate light hydrocarbons in GC analysis (C 1 -C 4 , Robillard et al, 1979) as well as air, CO, and CH 4 (reported by Phase Separations). The physical properties of Spherocarb have been extensively investigated in a study by Waters et al (1988).…”