. Author manuscript; available in PMC: 2017 Feb 13.

Published in final edited form as: Anal Chem. 2016 Aug 12;88(18):8949–8956. doi: 10.1021/acs.analchem.6b01914

Table 1.

Collision Cross Sections of the Samples Considered in the Current Study Measured by 89 cm Drift Tube IM-MS Platform Using 17.3 V/cm in 4 Torr of Pure Nitrogen Buffer Gas

sample	species	m/z	cross section (Å²)
bradykinin	[M + 2H]²⁺	530.79	344.3
RRGPFPSPF	[M + 2H]²⁺	530.79	347.3
GPFRPRFPS (C)	[M + 2H]²⁺	530.79	349.6
GPFRPRFPS (D)	[M + 2H]²⁺	530.79	359.4
cellotetraose	[M + Na]⁺	689.21	225.3
maltotetraose	[M + Na]⁺	689.21	232.6
mannotetraose	[M + Na]⁺	689.21	235.1