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. Author manuscript; available in PMC: 2016 Mar 1.
Published in final edited form as: J Am Soc Mass Spectrom. 2014 Dec 12;26(3):444–452. doi: 10.1007/s13361-014-1049-y

Figure 2.

Figure 2

Collision cross section distributions for doubly charged peptide [M + 2H]2+ ions (where M = SPELPSPQAEK, PELPSPQAEK, ELPSPQAEK, LPSPQAEK, PSPQAEK, SPQAEK, and PQAEK). Distributions were obtained from IMS-MS measurements by integrating the drift bins for a narrow m/z window for each ion of interest