光谱学与光谱分析 |
|
|
|
|
|
Characterization of Photobleaching of Chromophoric Dissolved Organic Matter in Xiamen Bay by Excitation Emission Matrix Spectroscopy |
CHENG Yuan-yue, GUO Wei-dong* |
State Key Laboratory of Marine Environmental Science (Xiamen University),College of Oceanography and Environmental Science, Xiamen University, Xiamen 361005, China |
|
|
Abstract Fluorescence excitation-emission matrix spectroscopy (EEMs) was applied to study the photobleaching of chromophoric dissolved organic matter (CDOM) in two surface water samples from Xiamen Bay exposed to natural sunlight between 10:00-16:00 during September 12-18, 2007. Both samples were collected from the lower and middle salinity areas in Jiulong Estuary of Xiamen Bay, and then filtered by 0.2 μm polycarbonate filters before the photobleaching incubation experiment. The results showed that three humic-like (C, A, M) and two protein-like (T, B) fluorescence peaks were observed in both samples, and the photobleaching didn’t cause obvious shift of the positions of these fluorescence peaks. The fluorescence intensities of the five peaks decreased with the increase in irradiation time and peak C demonstrated the fastest photobleaching rate. The photobleaching rate of low salinity sample was higher than that of middle salinity sample, consistent with its higher content of chromophores. All the five fluorophores could be distinguished into labile and refractory components based on their photobleaching dynamics. The increase in the intensity ratios of peak T and C (IT/IC) and peak T and C (IA/IC) after irradiation suggested that photobleaching can cause obvious change of the properties of dissolved organic matter in seawater, and it may partly account for the dominance of the protein-like fluorescence relative to the humic-like fluorescence in coastal area. The results suggest that EEMs was a useful tool to trace the transformation and removal processes of terrestrial CDOM entering the coastal regions.
|
Received: 2007-09-28
Accepted: 2007-12-29
|
|
Corresponding Authors:
GUO Wei-dong
E-mail: wdguo@xmu.edu.cn
|
|
[1] Coble P G. Marine Chemistry, 1996, 51: 325. [2] Stedmon C A, Markager S, Tranvik L, et al. Marine Chemistry, 2007, 104: 227. [3] FU Ping-qing, LIU Cong-qiang, WU Feng-chang(傅平青, 刘丛强, 吴丰昌). Spectroscopy and Spectral Analysis (光谱学与光谱分析), 2005, 25(12): 2024. [4] JIANG Feng-hua, YANG Huang-hao, LEE Frank Sen-chun, et al(蒋凤华, 杨黄浩, 黎先春, 等). Spectroscopy and Spectral Analysis(光谱学与光谱分析), 2007, 27(9): 1765. [5] Guo W D, Stedmon C A, Han Y C, et al. Marine Chemistry, 2007, 107: 356. [6] Kieber D J, McDaniel J, Mopper K. Nature, 1989, 341: 637. [7] Twardowski M S, Donaghay P L. Journal of Geophysical Research, 2002, 107(C8): 3091. [8] Skoog A, Wedborg M, Fogelqvist E. Marine Chemistry, 1996, 55: 333. [9] Bushaw K L, Zepp R G, Tarr M A, et al. Nature, 1996, 381: 404. [10] Moran M A, Zepp R G. Limnology and Oceanography, 1997, 42(6): 1307. [11] FENG Sheng, ZHANG Yun-lin, QIN Bo-qiang(冯 胜, 张运林, 秦伯强). China Environmental Science(中国环境科学), 2006, 26(4): 404. [12] Vodecek A, Blough N V, DeGrandpre, M D, et al. Limnology and Oceanography, 1997, 42(3): 674. [13] Nelson N B, Siegel D A, Michaels A F. Deep Sea Research, 1998, 45: 931. [14] Boss E, Pegau W S, Zaneveld J R V, et al. Journal of Geophysical Research, 2001, 106: 9499. [15] JI Nai-yun, ZHAO Wei-hong, WANG Jiang-tao, et al(季乃云, 赵卫红, 王江涛, 等). Chinese Journal of Environmental Science(环境科学), 2006, 27(2): 258. [16] Rochelle-Newall E J, Fisher T R. Marine Chemistry, 2002, 77: 7. [17] Mopper K, Schultz C A. Marine Chemistry, 1993, 41: 229. [18] Kieber R J, Whitehead R F, Reid S N, et al. Journal of Atmospheric Chemistry, 2006, 54: 21. [19] Kulovaara M, Corin N, Backlund P, et al. Chemosphere, 1996, 33: 783. [20] Stedmon C A, Markager S, Bro R, et al. Marine Chemistry, 2003, 82: 239.
|
[1] |
LEI Hong-jun1, YANG Guang1, PAN Hong-wei1*, WANG Yi-fei1, YI Jun2, WANG Ke-ke2, WANG Guo-hao2, TONG Wen-bin1, SHI Li-li1. Influence of Hydrochemical Ions on Three-Dimensional Fluorescence
Spectrum of Dissolved Organic Matter in the Water Environment
and the Proposed Classification Pretreatment Method[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2024, 44(01): 134-140. |
[2] |
GU Yi-lu1, 2,PEI Jing-cheng1, 2*,ZHANG Yu-hui1, 2,YIN Xi-yan1, 2,YU Min-da1, 2, LAI Xiao-jing1, 2. Gemological and Spectral Characterization of Yellowish Green Apatite From Mexico[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2024, 44(01): 181-187. |
[3] |
SONG Yi-ming1, 2, SHEN Jian1, 2, LIU Chuan-yang1, 2, XIONG Qiu-ran1, 2, CHENG Cheng1, 2, CHAI Yi-di2, WANG Shi-feng2,WU Jing1, 2*. Fluorescence Quantum Yield and Fluorescence Lifetime of Indole, 3-Methylindole and L-Tryptophan[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(12): 3758-3762. |
[4] |
YANG Ke-li1, 2, PENG Jiao-yu1, 2, DONG Ya-ping1, 2*, LIU Xin1, 2, LI Wu1, 3, LIU Hai-ning1, 3. Spectroscopic Characterization of Dissolved Organic Matter Isolated From Solar Pond[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(12): 3775-3780. |
[5] |
XUE Fang-jia, YU Jie*, YIN Hang, XIA Qi-yu, SHI Jie-gen, HOU Di-bo, HUANG Ping-jie, ZHANG Guang-xin. A Time Series Double Threshold Method for Pollution Events Detection in Drinking Water Using Three-Dimensional Fluorescence Spectroscopy[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(10): 3081-3088. |
[6] |
JIA Yu-ge1, YANG Ming-xing1, 2*, YOU Bo-ya1, YU Ke-ye1. Gemological and Spectroscopic Identification Characteristics of Frozen Jelly-Filled Turquoise and Its Raw Material[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(09): 2974-2982. |
[7] |
YANG Xin1, 2, XIA Min1, 2, YE Yin1, 2*, WANG Jing1, 2. Spatiotemporal Distribution Characteristics of Dissolved Organic Matter Spectrum in the Agricultural Watershed of Dianbu River[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(09): 2983-2988. |
[8] |
ZHU Yan-ping1, CUI Chuan-jin1*, CHENG Peng-fei1, 2, PAN Jin-yan1, SU Hao1, 2, ZHANG Yi1. Measurement of Oil Pollutants by Three-Dimensional Fluorescence
Spectroscopy Combined With BP Neural Network and SWATLD[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(08): 2467-2475. |
[9] |
QIU Cun-pu1, 2, TANG Xiao-xue2, WEN Xi-xian4, MA Xin-ling2, 3, XIA Ming-ming2, 3, LI Zhong-pei2, 3, WU Meng2, 3, LI Gui-long2, 3, LIU Kai2, 3, LIU Kai-li4, LIU Ming2, 3*. Effects of Calcium Salts on the Decomposition Process of Straw and the Characteristics of Three-Dimensional Excitation-Emission Matrices of the Dissolved Organic Matter in Decomposition Products[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(07): 2301-2307. |
[10] |
SHI Chuan-qi1, LI Yan2, HU Yu3, YU Shao-peng1*, JIN Liang2, CHEN Mei-ru1. Fluorescence Spectral Characteristics of Soil Dissolved Organic Matter in the River Wetland of Northern Cold Region, China[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(05): 1517-1523. |
[11] |
JIANG Xin-tong1, 2, 3, XIAO Qi-tao3, LI Yi-min1, 2, LIAO Yuan-shan1, 2, LIU Dong3*, DUAN Hong-tao1, 2, 3*. Temporal and Spatial Effects of River Input on Dissolved Organic Matter Composition in Lake Bosten[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(05): 1636-1644. |
[12] |
LI Yuan-jing1, 2, CHEN Cai-yun-fei1, 2, LI Li-ping1, 2*. Spectroscopy Study of γ-Ray Irradiated Gray Akoya Pearls[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(04): 1056-1062. |
[13] |
LIU Xia-yan1, CAO Hao-xuan1, MIAO Chuang-he1, LI Li-jun2, ZHOU Hu1, LÜ Yi-zhong1*. Three-Dimensional Fluorescence Spectra of Dissolved Organic Matter in Fluvo-Aquic Soil Profile Under Long-Term Composting Treatment[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(03): 674-684. |
[14] |
LÜ Yang1, PEI Jing-cheng1*, ZHANG Yu-yang2. Chemical Composition and Spectra Characteristics of Hydrothermal Synthetic Sapphire[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2022, 42(11): 3546-3551. |
[15] |
ZHANG Yong-bin1, ZHU Dan-dan1, CHEN Ying1*, LIU Zhe1, DUAN Wei-liang1, LI Shao-hua2. Wavelength Selection Method of Algal Fluorescence Spectrum Based on Convex Point Extraction From Feature Region[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2022, 42(10): 3031-3038. |
|
|
|
|