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Composition analysis of the disaccharide repeating units in the AS-GAG polysaccharide by SAX-HPLC analysis.
| Peak No. | Disaccharide structures | Composition/% | Ratio |
|---|---|---|---|
| 4 | ΔUA(2S)-GlcNAc | 72.92 | 6.00 |
 | |||
| 7 | ΔUA(2S)-GlcNAc(6S) | 14.94 | 1.23 |
 | |||
| 8 | ΔUA(2S)-GlcNSO3(6S) | 12.14 | 1.00 |
 |
Abbreviations: ΔUA, Δ(4,5) unsaturated hexuronic acid; GlcNAc, N-acetylated glucosamine; GlcNSO3, N-sulfated glucosamine; 2S and 6S are 2-O- and 6-O-sulfate groups, respectively.
