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Kinetic measurement of autoxidation in carotenoids by X‐ray diffraction: a new, rapid, and reliable method
Author(s) -
Abad E.
Publication year - 1982
Publication title -
journal of applied crystallography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.429
H-Index - 162
ISSN - 1600-5767
DOI - 10.1107/s0021889882012254
Subject(s) - autoxidation , carotenoid , diffraction , powder diffraction , kinetic energy , chemistry , atmospheric oxygen , oxygen , analytical chemistry (journal) , materials science , crystallography , organic chemistry , optics , physics , biochemistry , quantum mechanics
X‐ray powder diffractometry has been used for the kinetic study of autoxidation by atmospheric oxygen of synthetic carotenoids at different temperatures (heterogeneous reactions). Peak intensity of a selected diffraction maximum was chosen as a kinetic variable. The results found for β ‐apo‐8′‐carotenal, C 30 H 40 O, showed that X‐ray diffraction can be a rapid, simple, and reliable method for the kinetic analysis of autoxidation of carotenoids and perhaps for other materials in the solid state. This could open new perspectives in the study of this type of reaction.