title: Mass fragmentographic determination of polynuclear aromatic hydrocarbons in soil.
mesh_terms: D008401:Gas Chromatography-Mass Spectrometry / Q000379:methods*; D011083:Polycyclic Compounds / Q000032:analysis*; D012989:Soil Pollutants / Q000032:analysis*
chemical_list: D011083:Polycyclic Compounds; D012989:Soil Pollutants