Identification of N1-glycolylbiuret in the gamma radiolysis of aerated aqueous solution of cytosine. Influence of the pH.

نویسندگان

  • M Polverelli
  • J Ulrich
  • R Teoule
چکیده

N1 glycolylbiuret has been identified as a radiation product of cytosine in aerated aqueous solution at pH 4.5. When varying the pH of the solution before irradiation from acidic values towards neutral ones, G value of N1 glycolylbiuret reached a maximum at pH 4.5.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Gamma irradiation of cytosine in an aerated aqueous solution. II. Kinetic study of the formation of the radiolysis products of cytosine resulting from the deamination pathway.

After gamma irradiation of cytosine in aerated aqueous solution, yields of chemical radiation products belonging to the deamination pathway were measured. Primary stable radiolysis products, such as 5,6-dihydroxy-5,6-dihydro-uracil cis and trans forms, were present with G values lower than those obtained in the radiolysis of uracil irradiated under the same conditions. Cytosine had Gamma Irradi...

متن کامل

Gamma irradiation of cytosine in an aerated aqueous solution. I. Identification of radiolysis products of cytosine resulting from the deamination pathway.

Radiolysis products resulting from the deamination pathway were isolated and identified after irradiation of cytosine by gamma rays in neutral aqueous solutions. They were identical to those identified in uracil radiolysis i. e. 5,6-dihydroxy-5,6-dihydro-uracil (cis and trans forms), iso-dialuric acid, alloxan, 5-hydroxy-hydantoin, parabanic acid and oxaluric acid. The absence of 4,4'-di-iso-ba...

متن کامل

Elimination of Copper (II) Ions from Aqueous Solution by the using of gamma alumina nanoparticles

heavy metals, as gamma alumina nanoparticles pollutants, in water resources. Therefore, the purpose of this paper was to evaluate the removal of copper (II) ions from aqueous solutions using gamma alumina nanoparticles as a adsorbent. Batch adsorption studies carried out to study various parameters included contact time, initial concentration of copper (II) ions, pH, and gamma alumina nanoparti...

متن کامل

Water radiolysis by gamma –irradiation for high quality synthesis of Nickel Oxide nano sheet

A simple, time effective and cost effective, methos was reported for synthesis of nickel oxide nanostructure. The NiO nanostructure was synthesized by gamma-irradiation method from NiSO4 precursor. The solution was irradiated by 60Co gamma-ray source at the dose rate of 40 Gy/min for determined time. The synthesized powders are characterized by means of X-ray powder diffraction (XRD), Energy-di...

متن کامل

Radiolysis of Cytosine, 5-Methyl Cytosine and 2'-Deoxycytidine in Deoxygenated Aqueous Solution A Pulse Spectroscopic and Pulse Conductometric Study of the OH Adduct*

Cytosine, G-Values, pK-Values, Absorption Spectra, Pulse Radiolysis Using the pulse radiolysis technique the OH adducts of cytosine, 5-methyl cytosine and 2'-deoxycytidine were investigated in alkaline N20 saturated aqueous solutions. Absorption spectra were recorded and their change with time was correlated with the change in conductivity. An OH induced reaction (1.4 • 108 1 • mol-1 • s -1) wa...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:
  • Zeitschrift fur Naturforschung. Section C, Biosciences

دوره 39 1-2  شماره 

صفحات  -

تاریخ انتشار 1984