title: Packed versus capillary columns in gaschromatography.
mesh_terms: D000473:Alkanes / Q000032:analysis; D002849:Chromatography, Gas / Q000295:instrumentation*; D005069:Evaluation Studies as Topic; D006801:Humans; D008433:Mathematics; D008722:Methods; D012825:Silicon; D013256:Steroids / Q000032:analysis
chemical_list: D000473:Alkanes; D013256:Steroids; D012825:Silicon