A calorimetric and spectroscopic investigation on the nature of gamma radiation induced colouration in 5-aminolevulinic acid

Authors
Golub, A Lachaine, A Nadeau, P Pottier, R
Citation
A. Golub et al., A calorimetric and spectroscopic investigation on the nature of gamma radiation induced colouration in 5-aminolevulinic acid, CAN J A S S, 44(4), 1999, pp. 97-102
Citations number
13
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences
Journal title
CANADIAN JOURNAL OF ANALYTICAL SCIENCES AND SPECTROSCOPY
ISSN journal
12056685 → ACNP
Volume
44
Issue
4
Year of publication
1999
Pages
97 - 102
Database
ISI
SICI code
1205-6685(1999)44:4<97:ACASIO>2.0.ZU;2-#
Abstract
gamma-irradiation of powdered 5-Aminolevulinic Acid (ALA) samples produced a change in colour from white to yellow. Calorimetric and spectroscopic mea surements were performed on these samples. The results can be interpreted i n terms of the formation of point defects (F-centres) such that the overall crystal structure was not affected.