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. Author manuscript; available in PMC: 2016 Jun 24.
Published in final edited form as: Methods Mol Biol. 2013;966:239–258. doi: 10.1007/978-1-62703-245-2_15

Figure 4.

Figure 4

Full negative mode nanoelectrospray ionization mass spectrum of a hexaacylated bis-phosphorylated lipid A. The singly deprotonated lipid A ion is denoted by [M-H]− and the doubly deprotonated lipid A ion is denoted by [M-2H]2−.