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. Author manuscript; available in PMC: 2013 Jun 28.
Published in final edited form as: J Phys Chem B. 2010 Jul 29;114(29):9496–9503. doi: 10.1021/jp102332g

Figure 4.

Figure 4

Heterogeneous reaction of a 1:1 mixture of SOPC and DPPC with O3 as a function of time. In the absence of ozone, the positive ion FIDI-MS spectrum shows the singly charged sodiated DPPC and SOPC monomoers at m/z 756 and m/z 810, respectively. The singly charged monosodiated DPPC and SOPC homodimers are observed at m/z 1489 and m/z 1597, respectively. The singly sodiated heterogeneous dimer of DPPC and SOPC appears at m/z 1543. The oxidation products of SOPC including monomeric aldehyde product (m/z 700) and the complex of DPPC and aldehyde product (m/z 1433) are observed after 5 s of O3 exposure. Sodiated DPPC monomers and dimers of DPPC dominate the FIDI-MS spectrum after 30 s.