Table 3. Ion Masses in the Positive Ion Mode of the Degradation Products Formed During Degradation under Slightly Basic Conditions.
compound | [M+] | [MS2] | [MS3] | possible identity |
---|---|---|---|---|
1 | 199 | syringic acid | ||
2 | 985 | 823 | 661 | dimer 1 |
3 | 985 | 823 | 661 | dimer 2 |
4 | 1001 | 983; 839; 677 | monohydrated dimer | |
5 | 1003 | 985; 823 | monohydrated dimer | |
6 | 1017 | 855; 693 | ||
7 | 1511 | 1349; 1493; 1331 | dihydrated trimer | |
8 | 1491 | 1329; 1167; 1005 | monohydrated trimer | |
9 | 1493 | 1331; 1169 | monohydrated trimer |