underivatised | permethylated | peracetylated | |||||
---|---|---|---|---|---|---|---|
|
|
monoisotopic | average | monoisotopic | average | monoisotopic | average |
Hexose (Hex) | e.g. galactose, mannose, glucose | 162.0528 | 162.1424 | 204.0998 | 204.2230 | 288.0845 | 288.2542 |
HexNAc | e.g. N-acetylglucosamine, N-acetylgalactosamine | 203.0794 | 203.1950 | 245.1263 | 245.2756 | 287.1005 | 287.2695 |
Deoxyhexose | e.g. fucose, rhamnose | 146.0579 | 146.1430 | 174.0892 | 174.1968 | 230.0790 | 230.2176 |
Pentose | e.g. xylose | 132.0423 | 132.1161 | 160.0736 | 160.1699 | 216.0634 | 216.1907 |
NeuAc | = N-acetyl neuraminic acid (sialic acid) | 291.0954 | 291.2579 | 361.1737 | 361.3923 | 417.1271 | 417.3698 |
NeuGc | = N-glycolyl neuraminic acid | 307.0903 | 307.2573 | 391.1842 | 391.4186 | 475.1326 | 475.4064 |
KDN | = Ketodeoxynonulosonic acid | 250.0689 | 250.2053 | 320.1472 | 320.3397 | 376.1006 | 376.3171 |
HexA | e.g. hexuronic acid | 176.03209 | 176.1259 | 218.0790 | 218.2066 | 260.0532 | 260.2005 |
Acetate | |
42.0106 | 42.0373 | - | - | - | - |
H+ | |
1.00727 | 1.00739 | - | - | - | - |
H | |
1.00783 | 1.00794 | - | - | - | - |
H2O | |
18.01056 | 18.01524 | - | - | - | - |
K+ | |
38.963707 | 39.0983 | - | - | - | - |
Na+ | |
22.989768 | 22.998977 | - | - | - | - |
Phosphate | |
79.9663 | 79.9799 | 93.9820 | 94.0068 | 37.9558 | 37.9426 |
Sulphate | |
79.9568 | 80.0642 | 65.9412 | 66.0373 | 37.9463 | 38.0269 |
Trifluoroacetic acid | |
112.9850391 | 113.0160096 | - | - | - | - |