title: Comment on "comprehensive profiling of coal tar and crude oil to obtain mass spectra and retention indices for alkylated PAH shows why current methods err".
authors.affiliation: Energy and Environmental Research Center, University of North Dakota, 15 North 23rd Street, Grand Forks, North Dakota 58202, USA. shawthorne@undeerc.org
authors.forename: Steven B
authors.initials: SB
authors.lastname: Hawthorne
authors.forename: David J
authors.initials: DJ
authors.lastname: Miller
mesh_terms: D003033:Coal Tar / Q000737:chemistry*; D013058:Mass Spectrometry / Q000379:methods*; D010578:Petroleum / Q000032:analysis*; D011084:Polycyclic Aromatic Hydrocarbons / Q000737:chemistry*
chemical_list: D010578:Petroleum; D011084:Polycyclic Aromatic Hydrocarbons; D003033:Coal Tar