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. Author manuscript; available in PMC: 2014 Aug 21.
Published in final edited form as: Rapid Commun Mass Spectrom. 2007;21(7):1315–1320. doi: 10.1002/rcm.2964

Figure 2.

Figure 2

Positive-ion (A) and negative-ion (B) reflector MALDI mass spectra of Na8SOS, and a negative-ion MALDI mass spectrum of Li8SOS (C) acquired with an ILM, G2CHCA. Peaks due to the matrix are marked with triangles; peaks marked with asterisks correspond to the SO3-loss fragments.