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Optical spectra of aqueous solutions of glutamine-tryptophan associates

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Abstract

The optical density and luminescence ability of aqueous solutions of glutamine-tryptophan depend on the degree of oxidation of the initial dry substances of dipeptide. Glutamine-tryptophan has a high associating ability, which increases if stored. The general form of the optical absorption and luminescence spectra of the associates differs little from the spectra of monomers. Among the spectral-optical symptoms of association of a substance in a solution for glutamine-tryptophan, we discovered the hypochromism and narrowing of the absorption spectra and shortening of the fluorescence lifetime.

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Authors and Affiliations

  1. Institute of Molecular and Atomic Physics, National Academy of Sciences of Belarus, 70 F. Skorina Ave., 220072, Minsk, Belarus

    A. S. Prishchepov

  2. Belarusian State Institute for Advanced Training of Physicians, Ministry of Public Health of the Republic of Belarus, Minsk

    E. K. Pil’ko

Authors
  1. A. S. Prishchepov
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  2. E. K. Pil’ko
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Correspondence to A. S. Prishchepov.

Additional information

Translated from Zhurnal Prikladnoi Spektroskopii, Vol. 67, No. 4, pp. 436–439, July–August, 2000.

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Prishchepov, A.S., Pil’ko, E.K. Optical spectra of aqueous solutions of glutamine-tryptophan associates. J Appl Spectrosc 67, 591–596 (2000). https://doi.org/10.1007/BF02681290

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