. Author manuscript; available in PMC: 2016 Mar 3.

Published in final edited form as: Anal Chem. 2015 Feb 17;87(5):3064–3071. doi: 10.1021/ac504725r

Table 3.

Complex glycoforms detected for haptoglobin peptide ¹⁷⁷VVLHPNHSVVDIGLIK¹⁹², from a mouse liver sample.

Glycan structure	mass added	RT	MH⁺ _cal	(4+)_cal	(4+)_mes	Δ[ppm]
biantennary NeuGc2	2236.7622	51.37	3976.7789	994.9502	994.9534	3
biantennary NeuGcNeuGc,Ac	2278.7728	51.92	4018.7895	1005.4528	1005.4536	1
biantennary NeuGc2Fuc	2382.8201	51.19	4122.837	1031.4646	1031.4651	0
biantennary NeuGc3	2543.8525	58.60	4283.869	1071.7227	1071.7299	7
triantennary NeuAcNeuGc2	2892.9898	57.74	4633.007	1159.0071	1159.0103	3
triantennary NeuGc3	2908.9847	57.46	4649.001	1163.0058	1163.0089	3
triantennary NeuGc2NeuGc,Ac	2950.9953	58.09	4691.0120	1173.5084	1173.5094	1

RT indicates the timepoint when the (4+) ions listed were selected for MS/MS analysis