. Author manuscript; available in PMC: 2017 Mar 1.

Published in final edited form as: J Mass Spectrom. 2016 Mar;51(3):219–235. doi: 10.1002/jms.3738

Table 2.

, Negative ion cross section measurements for high-mannose N-glycan

Man	Structure	m/z [M+H₂PO₄)⁻	Isomer	Cross section data (Å²)
				TW IM-MS					Linear
				Nitrogen				Helium	Nitrogen	Helium
				Cross section (Å²)	SD	n	Reference sample	Projected cross section (Å²)	Cross section (Å²)	Cross section (Å²)
3	19	1007.3	-	282.8	-	2	-	204.9	282.4	201.4
4	15	1169.3	d1	305.6	-	1	-	225.6	317.4	233.1
4	18,21	1169.3	d2(d3)	309.4	-	1	-	229.1	317.4	233.1
5	17	1331.4	d1	340.0	2.20	13	344.8	265.1	347.7	264.8
6	14	1493.5	d1	366.5	2.40	13	367.7	280.1	372.4	291.9
	12		d2	363.0	-	1	-	276.7	-	-
	13		d3	371.6	-		-	284.7	-	-
7	11	1655.5	d1d1	386.5	1.11	7	389.1	297.9	396.2	312.8
	8		d1d2	387.7	-	1	-	299.2	-	-
	10		d1d3	394.8	2.50	13	-	307.2	-	-
8	7	1817.6	d1d1d3	418.9	3.69	9	416.7	327.4	422.3	335.7
	5		d1d1d2	400.2	-	2	-	310.5	-	-
	6		d1d2d3	414.2	-	2	-	322.9	-	-
9	4	1979.6	d1d1d2d3	439.0	2.63	9	431.7	345.1	442.4	354.3
9	26	1979.6	d1d1d3,3- Me	438.0	-	1	-	344.3	-	-
10	27	2141.7	d1d1d2d3- 3-Me	459.6	-	1	-	363.8	-	-
G3M7	23	2141.7	d1d1	451.9	-	3	-	357.5	-	-
G3M8	22	2303.7	d1d1d3	482.0	-	1	-	384.4	-	-
G3M9	1	2465.8	d1d1d2d3	490.9	-	2	-	392.6	-	-