Monochloramination of Oxytetracycline: Kinetics, Mechanisms, Pathways, and Disinfection By-Products Formation
Monochloramination of Oxytetracycline: Kinetics, Mechanisms, Pathways, and Disinfection By-Products Formation
复制标题
土霉素的一氯胺化：动力学、机制、途径和消毒副产物的形成
DOI：
10.1002/clen.201200344
复制
发表时间：
2013-10
影响因子：
1.7
通讯作者：
Cao Qin
中科院分区：
文献类型：
--
作者：
Bi Xiangyu;Bin XU;Yi-Li Lin;Chen-Yan Hu;Tao Ye;Cao Qin
本研究考察了土霉素（OTC）一氯胺化过程中的降解动力学、消毒副产物（DBPs）的生成情况以及降解途径。降解动力学可用二级动力学模型很好地描述，第……（这里“fi”似乎不完整，你可以检查下是否有误，以便我准确翻译）
This study investigated the degradation kinetics, formation of disinfection by-products (DBPs), and degradation pathways during monochloramination of oxytetracycline (OTC). The degradation kinetics can be well described by a second-order kinetic model, first-order in monochloramine (NH2Cl), and first-order in OTC. Reaction of OTC with NH2Cl shows a high reactivity, with the apparent rate constant of 17.64/M/s at pH 7. The apparent rate constant declined as pH increased from 5 to 10. Six DBPs were detected during monochloramination of OTC, including chloroform (CF), 1,1-dichloro-2-propanone (1,1-DCP), 1,1,1-trichloro-2-propanone (1,1,1-TCP), dichloroacetonitrile (DCAN), trichloronitromethane (TCNM), and N-nitrosodimethlyamine (NDMA). CF, DCAN and NDMA had the maximum yields at neutral pH, while 1,1-DCP and 1,1,1-TCP had the maximum yields at pH 4. However, TCNM concentration increased as pH increased. Degradation pathways of OTC monochloramination were then proposed. Hydroxylation and Cl-substitution are found to be the dominant mechanisms in monochloramination of OTC.
登录
查看更多内容
影响因子：
15
作者：
C. R. Stephens;K. Murai;K. J. Brunings;R. Woodward
通讯作者：
C. R. Stephens;K. Murai;K. J. Brunings;R. Woodward
影响因子：
8.8
作者：
Bin Xu;Fu-xiang Tian;Chen-yan Hu;Yi-Li Lin;Shengji Xia;Rong Rong-Rong;Da-Peng Li
通讯作者：
Bin Xu;Fu-xiang Tian;Chen-yan Hu;Yi-Li Lin;Shengji Xia;Rong Rong-Rong;Da-Peng Li
影响因子：
11.4
作者：
Mitch, WA;Sedlak, DL
通讯作者：
Sedlak, DL
影响因子：
11.4
作者：
Herbert T. Buxton;D. Kolpin
通讯作者：
Herbert T. Buxton;D. Kolpin
DOI：
10.5860/choice.40-0285
发表时间：
2002
期刊：
--
影响因子：
--
作者：
S. Levy
通讯作者：
S. Levy