| Kojima湖表层水的腐殖质特征 |
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| 引用本文： | 野上佑作,福原富. Kojima湖表层水的腐殖质特征[J]. 湖泊科学, 1998, 10(S1): 241-246 |
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| 作者姓名： | 野上佑作 福原富 |
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| 作者单位： | Department of Biological Chemistry, 1-1 Ridai-cho, Okayama 700, Japan,Department of Applied Chemistry Okayama University of Science, 1-1 Ridai-cho, Okayama 700, Japan |
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| 摘 要： | Humic compounds are one of the major substances that affect the COD value of the surface water of Lake Kojima. The humic compounds in the lake water were studied with a spectrofluorophotometer. The 3-dimensional fluorescence spectrum suggests that two kinds of fluorescent substances exist in the lake water. One shows an fluorescence excitation maxim (Ex) at about 240 nm and an emission maxim (Em) at 413 nm. The other has an Ex at 330 nm and an Em at 418 nm. The former peaks are associated with humic acid and the latter peaks are associated with fulvic acid. These peak intensities are proportional to the COD values. The fulvic acid in the lake water may be enriched by the effluent from domestic water treatment plants.
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| 关 键 词： | 3-dimensional fluorescence spectrum humic acid fulvic acid Lake Kojima |
| 收稿时间： | 1997-02-25 |
| 修稿时间： | 1998-03-27 |
Characterization of Humic Compounds in the Surface-Water of Lake Kojima |
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| Yusaku Nogami and Minoru Fukuhara. Characterization of Humic Compounds in the Surface-Water of Lake Kojima[J]. Journal of Lake Science, 1998, 10(S1): 241-246 |
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| Authors: | Yusaku Nogami and Minoru Fukuhara |
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| Affiliation: | Department of Biological Chemistry, 1-1 Ridai-cho, Okayama 700, Japan and Department of Applied Chemistry Okayama University of Science, 1-1 Ridai-cho, Okayama 700, Japan |
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| Abstract: | Humic compounds are one of the major substances that affect the COD value of the surface water of Lake Kojima. The humic compounds in the lake water were studied with a spectrofluorophotometer. The 3-dimensional fluorescence spectrum suggests that two kinds of fluorescent substances exist in the lake water. One shows an fluorescence excitation maxim (Ex) at about 240 nm and an emission maxim (Em) at 413 nm. The other has an Ex at 330 nm and an Em at 418 nm. The former peaks are associated with humic acid and the latter peaks are associated with fulvic acid. These peak intensities are proportional to the COD values. The fulvic acid in the lake water may be enriched by the effluent from domestic water treatment plants. |
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| Keywords: | 3-dimensional fluorescence spectrum humic acid fulvic acid Lake Kojima |
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