Table 2. Intra-individual stability of IgG glycans, given as coefficients of variation of all HILIC-UPLC separated glycan groups measured through four days in nine individuals.

Glycan group	Coefficient of variation (%)
	Person 1	Person 2	Person 3	Person 4	Person 5	Person 6	Person 7	Person 8	Person 9	average	reproducibility of the analytical method*
GP1	12.6	9.1	12	16.7	20	0.09	9.1	8.4	14.9	11.5	26.7
GP2	5.06	8.6	8.9	4.56	3.6	2.77	3.8	8.1	5.22	5.62	9.97
GP4	1.16	0.9	3.2	2.06	2.6	3.39	3.7	1.1	3.07	2.34	7.92
GP5	7.01	2.9	21	5.52	8	6.34	6.3	7.8	8.3	8.18	6.37
GP6	0.94	1.1	4.2	0.49	3.4	1.6	3.9	1.5	2.91	2.23	11.6
GP7	10.6	2.6	7.5	4.28	4	4.38	5.1	1.2	10.6	5.59	4.44
GP8	0.94	0.8	2	0.66	0.7	0.74	1.9	1.1	1.09	1.09	9.54
GP9	0.45	0.4	4.7	1.78	2.1	2.01	2.6	2.6	3.48	2.23	3.06
GP10	2.35	1.3	1.6	0.18	1.2	1.75	2.9	2.2	0.39	1.54	2.63
GP11	6.14	1.6	4.4	4.59	2.1	0.98	3.4	3.2	6.21	3.63	2.76
GP12	1.21	2.9	13	5.06	5	4.16	0.9	8.1	2.17	4.73	4.95
GP13	6.51	5.8	15	0.97	10	18.3	3.3	9.6	18.8	9.84	6.55
GP14	1.14	0.5	1.3	1.33	1	0.81	0.7	1.3	1.67	1.08	7.58
GP15	0.85	0.5	1.5	1.56	1.9	2.15	0.8	1.1	3.78	1.59	3.26
GP16	1.24	3.6	1.1	1.93	3.5	3.63	5.3	5.9	1.83	3.11	4.22
GP17	4.05	1.8	4.7	6.19	4	3.16	6.7	3.7	8.15	4.72	3.33
GP18	1.05	0.7	3.5	0.68	1.9	1.4	3.3	2.9	3.66	2.11	6.02
GP19	2.45	2.4	5.1	3.86	3.1	3.07	7.5	3.3	7.95	4.31	4.43
GP20	7.73	5	4.9	15.6	9.7	10.1	30	7.3	6.5	10.7	5.08
GP21	11.1	8.9	29	13	14	8.25	24	13	12.7	14.8	8.54
GP22	15.7	10	21	4.56	40	12.1	37	21	13.4	19.4	15.9
GP23	3.72	7.4	10	0.74	5.5	3.6	26	8	8.2	8.18	14.2
GP24	5.97	8.1	8.7	0	3.6	5.58	22	12	5.31	7.9	9.08
average	4.78	3.76	8.25	4.18	6.56	4.37	9.12	5.81	6.53	5.93	8.65

*determined by ten repeated analysis of the same sample (IgG isolation, glycan release and labelling, HPLC analysis) on different occasions.