title: Gas-chromatographic analysis of permethylated ceramides.
mesh_terms: D001923:Brain Chemistry; D002518:Ceramides / Q000032:analysis*; D002849:Chromatography, Gas; D008722:Methods; D008745:Methylation; D013110:Sphingosine / Q000032:analysis
chemical_list: D002518:Ceramides; D013110:Sphingosine