高锰酸钾
化学
亚砜
硫醚
砜
高锰酸盐
头孢唑林
键裂
转化(遗传学)
有机化学
药物化学
生物化学
催化作用
抗生素
基因
作者
Liping Li,Dongbin Wei,Guohua Wei,Yuguo Du
出处
期刊:Chemosphere
[Elsevier]
日期:2016-02-11
卷期号:149: 279-285
被引量:26
标识
DOI:10.1016/j.chemosphere.2016.01.117
摘要
Cefazolin was demonstrated to exert high reactivity toward permanganate (Mn(VII)), a common oxidant in water pre-oxidation treatment. In this study, five transformation products were found to be classified into three categories according to the contained characteristic functional groups: three (di-)sulfoxide products, one sulfone product and one di-ketone product. Products analyses showed that two kinds of reactions including oxidation of thioether and the cleavage of unsaturated CC double bond occurred during transformation of cefazolin by Mn(VII). Subsequently, the plausible transformation pathways under different pH conditions were proposed based on the identified products and chemical reaction principles. More importantly, the simulation with real surface water matrix indicated that the proposed transformation pathways of cefazolin could be replayed in real water treatment practices.
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