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Detection of tannins in modern and fossil barks and in plant residues by high-resolution solid-state C nuclear magnetic resonance |
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| Authors: | Michael A Wilson Patrick G Hatcher |
| Abstract: | Bark samples isolated from brown coal deposits in Victoria, Australia, and buried wood from Rhizophora mangle have been studies by high-resolution solid-state nuclear magnetic resonance (NMR) techniques. Dipolar dephasing 13C NMR appears to be a useful method of detecting the presence of tannins in geochemical samples including barks, buried woods, peats and leaf litter. It is shown that tannins are selectively preserved in bark during coalification to the brown coal stage. |
| Keywords: | bark 13C solid-state NMR dipolar dephasing coalification tannins |
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