title: Separation and gas chromatographic determination of normal hydrocarbons in tobacco leaves.
mesh_terms: D002845:Chromatography; D002849:Chromatography, Gas; D006838:Hydrocarbons / Q000302:isolation & purification*; D010947:Plants, Toxic; D012822:Silicon Dioxide; D014026:Nicotiana / Q000032:analysis*
chemical_list: D006838:Hydrocarbons; D012822:Silicon Dioxide