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. Author manuscript; available in PMC: 2012 Dec 1.
Published in final edited form as: Int J Mass Spectrom. 2011 Dec 1;308(2-3):142–154. doi: 10.1016/j.ijms.2011.04.008

Figure 5.

Figure 5

Comparison of the accuracy of identifying b2 and b3 fragments before and after recalibration of spectra using y1 ions.