Gas-phase ion chemistry of protonated melatonin

6533b81ffe1ef96bd1278bcb

RESEARCH PRODUCT

Gas-phase ion chemistry of protonated melatonin

David Bongiorno Lorenzo Camarda Leopoldo Ceraulo Maurizio Ciofalo Mirella Ferrugia Mele A Vincenzo Turco Liveri

subject

melatonin ESI/MS ESI/MS/MS deuterium labelled compounds ion chemistry scrambling reactions proton affinity Settore CHIM/02 - Chimica Fisica

description

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

year	journal	country	edition	language
2005-01-01

http://hdl.handle.net/10447/15303

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