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四环素类抗菌素碱性降解荧光增敏作用研究
Authors
常文保
慈云祥
赵一兵
Publication date
1 January 1997
Publisher
Abstract
四环素类抗菌素的碱性溶液(kOH)在沸水浴中加热一定时间而发生降解,其降解物的荧光激发光谱和发射光谱均发生改变,且荧光强度较四环素类抗菌素本身的天然荧光增强5~190倍,认为发生了分子内亲核断环反应,生成具有内酯结构的降解物,此降解物内酯结构中氧原子上孤对电子与共轭π电子相互作用.使分子中共轭电子体系的离域性增大,荧光增强.国家自然科学基金;福建省自然科学基金资助项
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Last time updated on 16/06/2016