蒙脱石
吸附
粘土矿物
水溶液
化学
辐照
降级(电信)
化学稳定性
化学工程
矿物学
有机化学
计算机科学
电信
物理
工程类
核物理学
作者
Ariel Guzmán,A. Negrón‐Mendoza,S. Ramos-Bernal
出处
期刊:PubMed
日期:2002-07-01
卷期号:48 (5): 525-8
被引量:1
摘要
Adenine is an important compound in biological systems, such as genetic and energy utilization processes. Adenine is readily formed in prebiotic conditions. Its synthesis and stability in environmental conditions are of paramount importance in chemical evolution processes. Clay minerals might have played an important role in the early Earth. Clays are known to have a high affinity for organic compounds, and they may provide protection to adsorbed molecules against high-energy radiation. The purpose of this work is to testthese assumptions. We study the stability of adenine under irradiation, in aqueous solution and also adsorbed in a clay mineral. The recovery of adenine after a gamma irradiation was higher in the system containing clay in relation to a system without clay. Results show that adenine is readily adsorbed in the clay, and that the clay act as surface protector toward the degradation of adenine by the radiation.
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