title: Use of a nematic liquid crystal for the gas chromatographic separation of Aza-heterocyclic compounds.
mesh_terms: D001372:Aza Compounds / Q000032:analysis*; D002273:Carcinogens / Q000032:analysis; D002849:Chromatography, Gas; D006571:Heterocyclic Compounds / Q000032:analysis*; D008722:Methods; D011083:Polycyclic Compounds / Q000032:analysis
chemical_list: D001372:Aza Compounds; D002273:Carcinogens; D006571:Heterocyclic Compounds; D011083:Polycyclic Compounds