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Fourier Transform Infrared Study On The Hydration Of Polyadenylic Acid(Poly A). I. Static Hydration Properties
Author(s): Yu Baozhu; Guo Hai; Wu Jinguang
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Paper Abstract

By means of FT-IR and subtraction techniques the absorption spectra of Poly A film have been studied systematically in the 4000 to 800 cm-1 region at 25 0C as a function of relative humidities (from 0% to 100%) approached by static equilibrium. According to the frequency and intensity changes of infrared spectra it proves that the hydration of Poly A has happened mainly on the -NH2 group of base, -P02 group and ribose ring. The largest frequency shift is observed on the -NH2 band and the strongest variation in intensity is on the -NH2 band, ribose-phosphate main chain vibration and -P02 symmetric stretching vibration. The spectra of water molecule also vary obviously and split into multiple peaks during hydration.

Paper Details

Date Published: 20 December 1985
PDF: 2 pages
Proc. SPIE 0553, Fourier and Computerized Infrared Spectroscopy, (20 December 1985); doi: 10.1117/12.970937
Show Author Affiliations
Yu Baozhu, Peking University (China)
Guo Hai, Peking University (China)
Wu Jinguang, Peking University (China)

Published in SPIE Proceedings Vol. 0553:
Fourier and Computerized Infrared Spectroscopy
David G. Cameron; Jeannette G. Grasselli, Editor(s)

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