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. Author manuscript; available in PMC: 2015 Dec 7.
Published in final edited form as: Anal Methods. 2014 Dec 7;6(23):9328–9332. doi: 10.1039/C4AY01655F

Figure 4.

Figure 4

TIMS and MS projection plots for the insets shown in Figure 3 of the structural isobars a) Phenanthracene and Anthracene (not resolved), b) Chrysene (56%) and 1,2 Benzanthracene (44%), and c) Benzo(a)Pyrene (45%), Benzo(b)Fluoranthene(14%) and Benzo(k)fluoranthene (41%). d–f) Excerpts of the mass spectrum corresponding to the compounds in a–c.