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. Author manuscript; available in PMC: 2011 Apr 15.
Published in final edited form as: Anal Chem. 2010 Apr 15;82(8):3293–3299. doi: 10.1021/ac100079z

Figure 1.

Figure 1

Positive-ion electrospray 14.5 T FT-ICR mass spectra of directly infused TnC. Each spectrum is obtained from the sum of 150 time-domain transients for the 18+ charge state of the protein. The star represents the monoisotopic mass in each spectrum. The number listed at left represents the maximum absolute abundance in each spectrum. Note how single- (and especially double-) isotopic depletion facilitates resolution and identification of oxidized and sodiated forms.