Table 2. Detection limits (fmol/well) of sulfated oligosaccharides.a) [Reproduced from ref. 12 with Copyright permission of American Chemical Society.].
| Analytes | Sensitivity improvement rate (fold) | |||||||
|---|---|---|---|---|---|---|---|---|
| No. | Name | FW | [M+Na]+ | [M−Na]− | ||||
| 2,5-DHB | G2CHCA | G3CA | 2,5-DHB | G2CHCA | G3CA | |||
| 1 | Neocarratetraose-41,3-di-O-sulfate (2Na+) | 834.6 | 1000 | 100 | 1 | 100 | 10 | 1 |
| 2 | Neocarrahexaose-41,3,5-tri-O-sulfate (3Na+) | 1242.9 | 1000 | 10 | 5 | 100 | 1 | 1 |
| 3 | Neocarrahexaose-24,41,3,5-tetra-sulfate (4Na+) | 1345.0 | ND | 100 | 10 | 1000 | 10 | 1 |
| 4 | Neocarradodecaose-41,3,5,7,9,11-hexa-sulfate (6Na+) | 2467.9 | ND | 10 | 1 | ND | 1 | 1 |
a) The highest sensitivity is shown for each analysis when 1–1000 fmol/well of analytes were analyzed. ND indicates that analyte molecular ions were not detected.