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. Author manuscript; available in PMC: 2013 Feb 6.
Published in final edited form as: J Am Soc Mass Spectrom. 2011 Mar 26;22(5):867–874. doi: 10.1007/s13361-011-0109-9

Figure 1.

Figure 1

NP-HPLC separation of 9- and 13-HpODE-CEs before and after trimethylsilylation. Chromatograms are total positive ion currents of precursors of m/z 369.3 scanning (m/z 650–800) of the starting material mixture (A) and the derivatization products (B). The asterisks indicate 9- and 13-oxo-ODE-CE impurities, the arrows indicate residual underivatized 9- and 13-HpODE-CE. Insets: Integrated mass spectra, averaged over the elution windows of both major peaks from m/z 640 to 710.