Erratum to: J. Am. Soc. Mass Spectrom

DOI 10.1007/s13361-011-0172-2

The caption and original version of Fig. 3 were incorrect; the corrected figure and caption are reproduced here. The authors regret the error.

Figure 3
figure 1

Localization of fatty acyl substitutent in phosphatidylcholines; PC 16:0/18:1 (9Z) fragmentation was conducted by selecting the ion at m/z 760.5 in the quadrupole region Q1 followed by collision-induced fragmentation in the trap region. (A) Shows the m/z 430–580 region of collision-induced dissociation mass spectra for drift time regions 2 and 3 for rhesus (upper panel), mouse (mid panel), and human plasma (lower panel) samples by LC-IMS/TOF. (B) Depicts the fragmentation pattern for synthetic standards PC 18:1 (9Z) / 16:0 (upper panel), PC 16:0 / 18:1 (9Z) (mid panel), and PC 16:0/18:1 (9Z) (13C1 in ω methyl position) (lower panel) in drift time regions 2 and 3 by flow injection analysis. dt = drift time for fragment ions generated in the trap region