|NUKLEONIKA 2013, 58(3):425-428
STUDY ON ORGANIC RADICALS GIVING RISE TO MULTICOMPONENT EMR SPECTRA IN DRIED FRUITS EXPOSE TO IONIZING RADIATION II. d-GLUCOSE
Grzegorz P. Guzik, Waclaw Stachowicz
Laboratory for Detection of Irradiated Food,
Institute of Nuclear Chemistry and Technology,
16 Dorodna Str. 03-195 Warsaw, Poland
Crystalline D-glucose extracted from dried resins was irradiated with 60Co gamma rays. The multicomponent EMR spectra of the samples kept at ambient temperature were compared with those heated at 105°C – the temperature close to the melting point of glucose. Normalized EMR spectra recorded with both samples were subtracted, resulting in a differential EMR spectrum. Spectral analysis of all three spectra has been done resulting in the identification of isotropic doublet of doublets assigned to less stable radical derived from parent glucose molecule.