Degradation Mechanism Study of Thiamphenicol and Florfenicol by Radiolysis
文献类型：期刊论文
| 作者 | Zhou Jiaxin ; Wu Minghong ; Yao Side(姚思德） |
| 刊名 | ACTA CHIMICA SINICA
 |
| 出版日期 | 2011 |
| 卷号 | 69期号:20页码:2479 |
| ISSN号 | 0567-7351 |
| 英文摘要 | Steady-state and pulse radiolysis experiments have been performed to gain insight into the mechanism of Thiamphenicol (THA) and Florfenicol (FLO) degradation in aqueous solutions. Redox reactions of aqueous THA and PLO solutions with center dot OH, e(aq)(-), and center dot H were studied by using pulse radiolysis techniques. The results indicated that the reaction pathway between THA/FLO and center dot OH was dominated by the initial solution pH value. In neutral condition, the addition reaction happened between center dot OH and benzene ring. The rate constants for the reactions of center dot OH with THA and FLO were found to be 1.09 X 10(8) L.mol(-1). s(-1) and 3.14 X 10(8) L.mol(-1).s(-1) respectively. But in alkaline condition, the organic bond OH(-) was removed by center dot OH. The dechlorination of THA and PLO was caused by e(aq)(-) attacking. The center dot H added on the benzene ring forming relative stable products, and the rate constants for the reactions of center dot OH with THA and FLO were 3.52 X 10(7) L.mol(-1).s(-1) and 2.43 X 10(8) L.mol(-1).s(-1), respectively. The reaction in alkaline solution was also discussed. The radiolysis degradation by-products were identified by GC/MS analysis and their degradation pathway were also conducted. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000297179300019 |
| 公开日期 | 2012-07-04 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/9480]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
| 推荐引用方式 GB/T 7714 | Zhou Jiaxin,Wu Minghong,Yao Side. Degradation Mechanism Study of Thiamphenicol and Florfenicol by Radiolysis[J]. ACTA CHIMICA SINICA,2011,69(20):2479. |
| APA | Zhou Jiaxin,Wu Minghong,&Yao Side.(2011).Degradation Mechanism Study of Thiamphenicol and Florfenicol by Radiolysis.ACTA CHIMICA SINICA,69(20),2479. |
| MLA | Zhou Jiaxin,et al."Degradation Mechanism Study of Thiamphenicol and Florfenicol by Radiolysis".ACTA CHIMICA SINICA 69.20(2011):2479. |
入库方式： OAI收割
来源：上海应用物理研究所
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