Sample

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

POLLEN (from Hnus sylvestris)

collected in The Netherlands suspension in methanol; 20 yg standard 7.2 X 104

remarks - Although dominated by signals typical of carbohydrate products, e.g. at m/z 32, 43, 72, 74, 84, 96, 98, 102, 110, 112, 114, 126, there are small but definite ion series which can be attributed to proteins e.g. at m/z 34, 43, 92, 94 and 117. Strong aromatic signals are present at m/z 94, 106, 108 and 120. Especially the large peak at m/z 120 is noteworthy since it is also found in some sporopollenin preparations (not shown in this Atlas) and therefore might be representative for this rather ill-defined type of biopolymer (ref. 74).

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