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. Author manuscript; available in PMC: 2013 Feb 27.

Published in final edited form as: Curr Anal Chem. 2009 Jul 1;5(3):225–237. doi: 10.2174/157341109788680291

Table 5. Reproducibility of Contributions for Disaccharide Standards from MS² and MS³ Spectra.

			% Ion Contribution
CID	Dimer	m/z	1	2	3	4	5	6	Av	SD
MS²	ΔUA2S-GlcNAc	237.0	22.84	21.03	22.29	21.03	21.61	21.84	21.77	0.71
	ΔUA2S-GlcNAc	357.1	1.92	2.13	2.87	2.03	2.10	2.11	2.19	0.34
	ΔUA-GlcNAc6S	237.0	0.02	0.02	0.01	0.02	0.02	0.02	0.02	0.00
	ΔUA-GlcNAc6S	357.1	23.07	23.60	23.31	23.57	23.32	24.06	23.49	0.34
MS³	ΔUA2S-GlcNS	297.1	29.60	30.21	31.08	30.40	29.12	31.04	30.24	0.78
	ΔUA2S-GlcNS	339.1	9.38	10.11	9.30	11.03	8.88	9.49	9.70	0.76
	ΔUA-GlcNS6S	297.1	0.00	0.02	0.00	0.00	0.00	0.00	0.00	0.01
	ΔUA-GlcNS6S	339.1	62.29	63.41	63.24	63.10	62.65	62.47	62.86	0.45