title: Analysis of mixtures of isomeric polynuclear hydrocarbons by nuclear magnetic resonance spectrometry methylated derivatives of anthracene, benz(a)anthracene, benzo(c)phenanthrene, and pyrene.
mesh_terms: D000873:Anthracenes / Q000302:isolation & purification; D001551:Benz(a)Anthracenes / Q000302:isolation & purification; D001580:Benzopyrenes / Q000302:isolation & purification; D002273:Carcinogens / Q000302:isolation & purification*; D009682:Magnetic Resonance Spectroscopy; D008745:Methylation; D010616:Phenanthrenes / Q000302:isolation & purification
chemical_list: D000873:Anthracenes; D001551:Benz(a)Anthracenes; D001580:Benzopyrenes; D002273:Carcinogens; D010616:Phenanthrenes