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Figure 6 | Geochemical Transactions

Figure 6

From: The nature and fate of natural resins in the geosphere. XII. Investigation of C-ring aromatic diterpenoids in Raritan amber by pyrolysis-GC-matrix isolation FTIR-MS

Figure 6

RIC (m/z = 239 + 237+ 225 + 211 + 197) for Raritan amber form 1 (Bleb 3) showing distribution of C-ring aromatic diterpenes. Compounds labeled † and * are assigned as methyl 17-nor dehydroabietate (XVIb) and methyl 17-nor calitrisate (XVIIb) respectively. However, due to the low abundance and coeleution of these eluants with other analytes, these assignments are tentative only.

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Geochemical Transactions

ISSN: 1467-4866

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