|
Diagnostic ions of the methyl-branched alkenes in the red Ca. rufifemur variety. |
||||
| substance No. |
Substance |
diagnostic ions from hydration |
diagnostic ions from DMDS derivatization |
inferred double bond position |
|
|
||||
| 37 |
25-MeC37-ene |
196, 365 |
243*, 271, 355, 383* |
14*, 16 or 21, 23* |
| 43 |
25-MeC38-ene, 26-MeC37-ene, 27-MeC38-ene |
182, 196, 210, 364, 379, 393 |
229, 243, 257, 271, 369, 383, 397, 411 |
13, 14, 15, 16 or 22, 23, 24, 25 |
| 52 |
27-Methyl-C39-ene |
196, 393 |
243, 271, 383, 411 |
14**, 16** or 23, 25 |
| 56 |
27-Methyl-C40-ene |
210, 393 |
243*, 257, 271, 397, 411, 425* |
14*, 15, 16 or 24, 25, 26* |
| 61 |
27-MeC41-ene, 29-MeC41-ene |
196, 224, 392, 421 |
243, 271*, 299, 383, 411*, 439 |
14, 16*, 18 or 23, 25*, 27 |
|
*diagnostic ion/molecule with respective double bond position at least twice as abundant as remaining ions/molecules; ** position of double bond was confirmed at the positions 14 and 16 via cleavage after ozonisation | ||||
Menzel et al. Frontiers in Zoology 2008 5:16 doi:10.1186/1742-9994-5-16 |
||||