title: II.3.d Volatile N-nitrosamines in beer and other beverages by direct extraction using a kieselguhr column.
mesh_terms: D001515:Beer / Q000032:analysis*; D001628:Beverages / Q000032:analysis*; D002849:Chromatography, Gas / Q000379:methods; D002850:Chromatography, Gel / Q000379:methods; D007692:Diatomaceous Earth; D002523:Edible Grain / Q000032:analysis; D009602:Nitrosamines / Q000032:analysis*
chemical_list: D009602:Nitrosamines; D007692:Diatomaceous Earth