Characteristics of the fluorescent substances in the Yodo River system by three-dimensional excitation emission matrix spectroscopy
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- SUZUKI Yasuhiro
- Department of Chemistry, Faculty of Science and Technology, Kinki University
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- NAKAGUCHI Yuzuru
- Department of Chemistry, Faculty of Science and Technology, Kinki University
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- HIRAKI Keizo
- Department of Chemistry, Faculty of Science and Technology, Kinki University
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- NAGAO Seiya
- Department of Environmental Safety Research, Japan Atomic Energy Research Institute
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- KUDO Mituo
- Department of Chemistry, Faculty of Science and Technology, Kinki University
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- KIMURA Munehito
- Department of Chemistry, Faculty of Science and Technology, Kinki University
Bibliographic Information
- Other Title
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- 三次元励起・蛍光光度法による淀川水系中の蛍光物質の特徴
- 3ジゲン レイキ ケイコウ コウドホウ ニヨル ヨドガワ スイケイチュウ ノ
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Description
In order to understand the characteristics of dissolved fluorescent substances in the Yodo River system, fluorescence properties of these substances were investigated by three-dimensional excitation emission matrix (3-D EEM) spectroscopy. The water samples were characterized by three excitation (Ex.)/emission (Em.) maxima in the winter and spring seasons. Relative fluorescence intensities of Ex./Em. maxima increased down stream. Positive relationships among relative fluorescence intensities of the three Ex./Em. maxima and dissolved organic carbon, nutrients in the river and pore waters were observed. The results suggest that the major sources of the fluorescent substances are waste water effluents as well as leaching from bottom sediments. Negative relationships between relative fluorescence intensities and chlorophyll a in the spring season, suggesting that these substances are not directly originated from the biological activity in this river system. The peak positions of the fluorescent substances in the river water samples corresponded to the protein and fulvic-like substances which have been reported.
Journal
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- Chikyukagaku
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Chikyukagaku 32 (1), 21-30, 1998
The Geochemical Society of Japan
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Details 詳細情報について
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- CRID
- 1390001205743625984
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- NII Article ID
- 110008679943
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- NII Book ID
- AN00141280
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- ISSN
- 21885923
- 03864073
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- NDL BIB ID
- 4423291
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL Search
- CiNii Articles
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- Abstract License Flag
- Disallowed