Interaction between carbamazepine and humic substances: a fluorescence spectroscopy study
文献类型：期刊论文
| 作者 | Bai, Yingchen1,2; Wu, Fengchang1; Liu, Congqiang1; Guo, Jianyang1; Fu, Pingqing1; Li, Wen1; Xing, Baoshan3 |
| 刊名 | Environmental toxicology and chemistry
 |
| 出版日期 | 2008 |
| 卷号 | 27期号:1页码:95-102 |
| 关键词 | Humic substance Carbamazepine Fluorescence Binding Interaction |
| ISSN号 | 0730-7268 |
| 通讯作者 | Wu, fengchang(wufengehang@vip.skleg.cn) |
| 英文摘要 | Carbamazepine is a popular drug that has been detected in natural environments, but little is known about its biogeochemical cycling, influencing factors, and eco-environmental effects in aquatic ecosystems. interaction between carbamazepine and humic substances, including fulvic and humic acids, was studied using three-dimensional excitation-emission matrix fluorescence spectroscopy and synchronous-scan fluorescence spectroscopy. the intrinsic fluorescence of humic substances was quenched on the addition of carbamazepine, and static quenching was the primary mechanism. the binding parameters on their interaction, including the conditional binding constants (log k) and binding capacities (c-l), were estimated by the ryan-weber nonlinear theory equation. log k ranged from 3.41 to 5.04 l/mol at 25 degrees c and ph 7.0. the influence of ph on the complexation and the competition between carbamazepine and cu(ii) for fluorescence-binding sites also were discussed. the present results would be helpful in understanding the fate and biogeochemical cycling of other pharmaceuticals and personal care products in aquatic ecosystems. |
| WOS关键词 | DISSOLVED ORGANIC-MATTER ; PERSONAL CARE PRODUCTS ; FULVIC-ACID ; PHARMACEUTICAL PRODUCTS ; AQUATIC ENVIRONMENT ; WATER TREATMENT ; SEWAGE-SLUDGE ; AMENDED SOILS ; METAL-IONS ; BINDING |
| WOS研究方向 | Environmental Sciences & Ecology ; Toxicology |
| WOS类目 | Environmental Sciences ; Toxicology |
| 语种 | 英语 |
| WOS记录号 | WOS:000251759500015 |
| 出版者 | SOC ENVIRONMENTAL TOXICOLOGY & CHEMISTRY-SETAC |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2392804 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Wu, Fengchang |
| 作者单位 | 1.Chinese Acad Sci, Inst Geochem, State Key Lab Environm Geochem, Guiyang 550002, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China 3.Univ Massachusetts, Dept Plant Soil & Insect Sci, Amherst, MA 01003 USA |
| 推荐引用方式 GB/T 7714 | Bai, Yingchen,Wu, Fengchang,Liu, Congqiang,et al. Interaction between carbamazepine and humic substances: a fluorescence spectroscopy study[J]. Environmental toxicology and chemistry,2008,27(1):95-102. |
| APA | Bai, Yingchen.,Wu, Fengchang.,Liu, Congqiang.,Guo, Jianyang.,Fu, Pingqing.,...&Xing, Baoshan.(2008).Interaction between carbamazepine and humic substances: a fluorescence spectroscopy study.Environmental toxicology and chemistry,27(1),95-102. |
| MLA | Bai, Yingchen,et al."Interaction between carbamazepine and humic substances: a fluorescence spectroscopy study".Environmental toxicology and chemistry 27.1(2008):95-102. |
入库方式： iSwitch采集
来源：中国科学院大学
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。