Chemical Details

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

FUCOIDAN (from Fuaus vesieulosus)

poly[(l->-2),(l-*4)i;Fuca]; containing sulphate substituents; see insert in spectrum

Koch-Light Ltd., Colnbrook, Bucks., UK

suspension in PBS buffer; 10 yg standard

4 X 104

REMARKS - The pronounced peak set at m/z 99, 110 and 128 is typical for 6-deoxyhexose polymers, m/z 110 and 128 representing the monomeric building blocks minus one or two molecules of water. The presence of sulphate groups becomes evident from the peak at m/z 64 (S02+"). The peak at m/z 126 may point to small amounts of hexose residues. In the spectrum obtained from a methanol suspension the peak at m/z 99 is less pronounced.

in z

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