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. Author manuscript; available in PMC: 2012 Feb 15.
Published in final edited form as: Anal Biochem. 2010 Nov 2;409(2):284–289. doi: 10.1016/j.ab.2010.10.035

Figure 1.

Figure 1

Negative ion ESI mass spectra of the Bligh-Dyer extracts of E. coli (A) and S. typhimurium (B). The insets show the magnified ion peaks for the [M-3H]3− ions of the small 3 kDa proteins.