title: Analysis of water extracts of crude petroleum by gel permeation chromatography.
mesh_terms: D002850:Chromatography, Gel; D006838:Hydrocarbons / Q000032:analysis; D008722:Methods; D010578:Petroleum / Q000032:analysis*; D010636:Phenols / Q000032:analysis; D013050:Spectrometry, Fluorescence; D013056:Spectrophotometry, Ultraviolet; D014867:Water
chemical_list: D006838:Hydrocarbons; D010578:Petroleum; D010636:Phenols; D014867:Water