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. Author manuscript; available in PMC: 2012 Feb 24.
Published in final edited form as: J Am Soc Mass Spectrom. 2011 Jul 13;22(9):1534–1551. doi: 10.1007/s13361-011-0185-x

Figure 2.

Figure 2

Product ion spectra of [M – H]− ions of m/z 324.2 and 342.3 corresponding to NO2-LA and NO2-[13C18]LA respectively. (A) 9-NO2-LA, (B) 9-NO2-[13C18]LA, (C) 10-NO2-LA, (D) 10-NO2-[13C18]LA recorded at a collision energy setting of 35 eV using a hybrid FT mass spectrometer