HPLC/EPR Study of Sugar-Nitroxide Radicals

摘要

Gamma radiation induces in glucose and its oligomers radicals whose powder EPR spectra are unresolved; compounds like the tertio butyl nitroso convert these radicals into long lived nitroxide adducts, in liquid medium. The relative spectra consist in multiple overlapping signals; the HPLC combined with an EPR spectrometer, used as a detector, allows a separation of radicals or groups of radicals: thus, the series of recorded EPR spectra are easier to be simulated and interpreted. (ERA citation 11:001132)