Effect of sunlight irradiation on fluorescence properties of dissolved organic matter
文献类型：期刊论文
| 作者 | Fu, PQ; Wu, FC; Liu, CQ; Xu, C; Wang, J; Bai, YC; Wang, LY |
| 刊名 | Spectroscopy and spectral analysis
 |
| 出版日期 | 2006-03-01 |
| 卷号 | 26期号:3页码:471-474 |
| 关键词 | Dissolved organic matter Sunlight irradiation Three-dimensional excitation emission matrix fluorescence spectroscopy |
| ISSN号 | 1000-0593 |
| 通讯作者 | Wu, fc() |
| 英文摘要 | Three-dimensional excitation emission matrix fluorescence spectroscopy (3deem) was used to investigate the effect of sunlight irradiation on the fluorescence properties of dissolved organic matter (dom) from lake hongfeng and nanming river waters and a commercial fluka humic acid (fha). the results show that the dom samples and fha fluorescence properties changed under sunlight irradiation. interestingly, the photodegradation characteristics were different between aquatic dom and fha. the fluorescence intensity of the apparent peaks a, b and c of lake and river water dom decreased with sunlight irradiation. the initial 3deem of fluka ha had only one fluorescence peak at lambda(ex)/lambda(em) = 275/500 nm, while two fluorescence peaks occurred at lambda(ex)/lambda(em) =245/450 nm and 310/450 nm, respectively, after sunlight irradiation. lambda(ex) and lambda(em) maxima of dom decreased during 7 days of sunlight irradiation. changes in r (a, c) of dom and fha with sunlight irradiation time suggest that fluorescence peaks a and c had different fluorescence loss rates, while peak c fluorophores were more susceptible to sunlight irradiation. fha appeared to be less susceptible to photodegradation, and its r(a, c) remained almost the same before and after sunlight irradiation. |
| WOS关键词 | SOLAR-RADIATION ; UV-B ; WATER ; RIVERINE ; MARINE ; BIOAVAILABILITY ; CARBON ; DOM |
| WOS研究方向 | Spectroscopy |
| WOS类目 | Spectroscopy |
| 语种 | 英语 |
| WOS记录号 | WOS:000236364900023 |
| 出版者 | BEIJING UNIV PRESS |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2378711 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Wu, FC |
| 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 |
| 推荐引用方式 GB/T 7714 | Fu, PQ,Wu, FC,Liu, CQ,et al. Effect of sunlight irradiation on fluorescence properties of dissolved organic matter[J]. Spectroscopy and spectral analysis,2006,26(3):471-474. |
| APA | Fu, PQ.,Wu, FC.,Liu, CQ.,Xu, C.,Wang, J.,...&Wang, LY.(2006).Effect of sunlight irradiation on fluorescence properties of dissolved organic matter.Spectroscopy and spectral analysis,26(3),471-474. |
| MLA | Fu, PQ,et al."Effect of sunlight irradiation on fluorescence properties of dissolved organic matter".Spectroscopy and spectral analysis 26.3(2006):471-474. |
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来源：中国科学院大学
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