Abstract
Isooctane solution and crystal of guaiazulene were irradiated with 102 to 108 r of γ-ray from cobalt-60 and their absorption spectra were measured in the ultraviolet region. The aqueous solution of sodium guaiazulene-3-sulfonate was also irradiated similarly and its spectra were measured. There was no general change in the absorption but it was found that the visible spectrum of the irradiated isooctane solution showed changes of arithmetical mean type of about 40 in the mean value of total absorption in the absorption ×103 value and about 12 in the fluorescence spectra, in the order of 10 irradiated dose. It was thereby considered that, in general, absorption values change in arithmetical or geometrical series up to a certain limit of the irradiation dose. The infrared ana NMR spectra of guaiazulene crystal irradiated with γ-ray showed practically no change from those of non -irradiated guaiazulene.
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Schedule a callMore From: Yakugaku zasshi : Journal of the Pharmaceutical Society of Japan
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