Mechanism of soft X-ray radiation damage on glycine by XPS.
This paper reports the behaviour of radiation damage of solid glycine in a XPS spectrometer equipped with Mg and Al X-ray sources. The main results are as follows: (i) the kinetics of the damage process obeys the first-order rate law, (ii) decarboxylation can be deduced, and (iii) deamination does not occur, but the nitrogen atoms in original molecules are transformed into a new chemical form with higher electron density by photo-reduction.
D003641:Deamination; D003653:Decarboxylation; D005998:Glycine / Q000528:radiation effects*; D007700:Kinetics; D009584:Nitrogen / Q000528:radiation effects; D011854:Radiochemistry; D013052:Spectrometry, X-Ray Emission / Q000295:instrumentation*
D009584:Nitrogen; D005998:Glycine