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Optica Publishing Group
  • Applied Spectroscopy
  • Vol. 41,
  • Issue 1,
  • pp. 74-79
  • (1987)

Spectral Investigations of the Effects of 60Co-Gamma Irradiation on Iodothyronine and Iodotyrosines

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Abstract

Solids of 3-iodo-, 3-5 di-iodotyrosine and 3,5-di-iodothyronine were irradiated by <sup>60</sup>Co-gamma irradiation for a period of about twenty hours. The effects of irradiation were investigated through a study of the UV and IR spectra of irradiated samples. UV spectra showed the presence of a new band at 360 nm which was assigned to the formation of IO<sup>−</sup>. IR spectra showed a strong carbonyl absorption and the removal of the carboxylate band in the case of thyronine only. For comparison, the spectra of the studied compounds were investigated before irradiation.

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