A procedure for pyrolysis-mass spectrometry is described and mass pyrograms are presented. Protonated molecular ions are observed that permit the characterisation of thermally labile lichen substances, gyrophoric acid and tenuiorin, by using a computerised mass spectrometer in the chemical ionisation mode.
J. B. Addison, Analyst, 1985, 110, 933 DOI: 10.1039/AN9851000933
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