SAMPLE ORIGIN SAMPLE PREP./SIZE PYROL. CONDITIONS TOTAL ION COUNTS
remarks - The prominent ion series at m/z 28, 42, etc. and at m/z 54, 68, etc. (apparently representing alkene and alkadiene series of pyrolysis fragments with up to 8 C atoms), are probably derived from the hydrocarbon side-chain of the molecule, whereas the peaks at m/z 95, 109 and 123 may well represent EI fragments from the more or less intact parent molecule.
: see insert in spectrum; cholest-5-en-3g-ol ; C?7H.,0; MW = 386
: O.P.G., Utrecht, The Netherlands
: solution in methanol; 10 yg
: ferromagnetic tube; T 770°C 4 4
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