Sample

CHEMICAL DETAILS SAMPLE ORIGIN SAMPLE PREP./SIZE PYROL. CONDITIONS TOTAL ION COUNTS

FOSSIL WOOD (Eocene) carbonified

Hengelo, The Netherlands suspension in methanol; 50 yg standard 1.4 X 105

remarks - This pattern of carbonified wood is similar to that of many lignites (see Spectrum F.16) and is dominated by aromatic fragments obviously derived from lignin-like moieties. It differs from that of recent wood (see Spectrum E.ll) by the almost complete absence of cellulose (Spectrum A.l) and hemicellu-lose fragments, as well as by the high sulphur-containing peaks at m/z 34, 48, 64, 76 and (possibly) 62.

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