Sample

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

RIVER CLAY (Holocene)

Lienden, Marspolder, The Netherlands suspension in methanol; 50 yg standard not determined remarks - In contrast to the humus-rich brown soil (carbon content 3.5%) (Spectrum F.l), the river clay shown here is very low in organic materials (0.45% C). Moreover, the organic matter appears to be composed primarily of aliphatic and aromatic hydrocarbons. The main heteroatom constituents appear to be found in the relatively low peaks at m/z 17 (NH3+"), m/z 64 (SO;?"1" and/or S2+") and, possibly, in the ion series at m/z 68, 82, 96, 110, 124 which may represent compounds with oxygen functional groups.

120 m/2 ™
0 0

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