| Ion | Carrageenan oligossacharide | |
| F1 | F2 | |
| M + Na+ | 940.4 | 967.1 |
| M-6Na+-2H2O | 833.5 | |
| M-Na+H2O | 924.2 | |
| M-2NA+-2H2O | 846.2 | |
| M-9Na+-6H2O | 696.7 | 696.7 |
| M-Galp4SAnGalp2S-Na+-2H2O | 511.3 | 511.3 |
| Galp4SAnGalp2SGalp4SAnGalp2S-4Na+ | 940.4 | |
| Galp4SAnGalp2SGalp4SAnGalp2S-3Na+ | 967.1 | |
| Galp4SAnGalp2S-N+-2H2O | 527.2 | 527.2 |
| Galp4S-Na+-H2O | 239.2 | |
| Galp4S-2Na+-H2O | 239.2 | |
| AnGalp2S-NaSO3 + H+ | 157.1 | 157.1 |