The gas-phase ion chemistry of protonated melatonin has been investigated by mass spectrometric (MS) techniques involving chemical ionisation, fast atom bombardment and electrospray ionisation. Either naturally- occurring or collision-induced decomposition e-D derivatives obtained by exchange with D(2)O. The analysis of experimental results allows definite pathways for the formation of the ion at m/z 174 to be assigned and sheds some more light on the overall fragmentation pathways. Experiments on labelled derivatives evidenced H-D scrambling processes during fragmentation
Bongiorno, D., Camarda, L., Ceraulo, L., Ciofalo, M., Ferrugia, M., Mele, A., et al. (2005). Gas-phase ion chemistry of protonated melatonin. In MASSA 2005: AN INTERNATIONAL SYMPOSIUM ON MASS SPECTROMETRY Book of Abstracts (pp.86-87). Roma.
Gas-phase ion chemistry of protonated melatonin
BONGIORNO, David;CAMARDA, Lorenzo;CERAULO, Leopoldo;CIOFALO, Maurizio;FERRUGIA, Mirella;TURCO LIVERI, Vincenzo
2005-01-01
Abstract
The gas-phase ion chemistry of protonated melatonin has been investigated by mass spectrometric (MS) techniques involving chemical ionisation, fast atom bombardment and electrospray ionisation. Either naturally- occurring or collision-induced decomposition e-D derivatives obtained by exchange with D(2)O. The analysis of experimental results allows definite pathways for the formation of the ion at m/z 174 to be assigned and sheds some more light on the overall fragmentation pathways. Experiments on labelled derivatives evidenced H-D scrambling processes during fragmentation
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