Table 2.
MALDI peaks for the mangium tannin extract
| M + Na+ Experimental | M + Na+ Calculated | Unit type |
| A | B | C |
| Monomer | | | | |
| 272.3 | 272.3 | 1 | - | - |
| 303.3 | 304.3 | - | - | 1 |
| Dimers | | | | |
| 603.4 | 601.6 | - | 2 | - |
| 615.3 | 617.6 | - | 1 | 1 |
| Trimers | | | | |
| 872.7 | 873.9 | 1 | 2 | - |
| 886.9 | 889.9 | - | 3 | - |
| 902.8 | 905.9 | - | 2 | 1 |
| 918.7 | 921.9 | - | 1 | 2 |
| Tetramers | | | | |
| 1159.6 | 1162.2 | 1 | 3 | - |
| 1174 | 1178.2 | - | 4 | - |
| 1190.6 | 1194.2 | - | 3 | 1 |
| 1206.4 | 1210.2 | - | 2 | 2 |
| Pentamers | | | | |
| 1462.4 | 1466.5 | 1 | 3 | 1 |
| 1478.4 | 1482.5 | - | 4 | 1 |
| 1494.4 | 1498.5 | - | 3 | 2 |
| 1510.3 | 1514.5 | - | 2 | 3 |
| Hexamers | | | | |
| 1750.5 | 1754.8 | 1 | 4 | 1 |
| 1766.4 | 1770.8 | - | 5 | 1 |
| 1782 | 1786.8 | - | 4 | 2 |
| Heptamers | | | | |
| 2070.4 | 2075.1 | - | 5 | 2 |