Contribution of the Photo-Fenton Reaction to Hydroxyl Radical Formation Rates in River and Rain Water Samples
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- NAKATANI Nobutake
- Graduate School for International Development and Cooperation, Hiroshima University Graduate School of Biosphere Science, Hiroshima University
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- UEDA Marina
- Graduate School of Biosphere Science, Hiroshima University
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- SHINDO Hirotaka
- Graduate School of Biosphere Science, Hiroshima University
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- TAKEDA Kazuhiko
- Graduate School of Biosphere Science, Hiroshima University
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- SAKUGAWA Hiroshi
- Graduate School of Biosphere Science, Hiroshima University
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The hydroxyl radical (OH radical) formation rates from the photo-Fenton reaction in river and rain water samples were determined by using deferoxamine mesylate (DFOM), which makes a stable and strong complex with Fe(III), resulting in a suppression of the photo-Fenton reaction. The difference between the OH radical formation rates with and without added DFOM denotes the rate from the photo-Fenton reaction. The photoformation rates from the photo-Fenton reaction were in the range of 0.7 - 45.8 × 10-12 and 2.7 - 32.3 × 10-12 M s-1 in river and rain water samples, respectively. A strong positive correlation between the OH radical formation rate from the photo-Fenton reaction and the amount of fluorescent matter in river water suggests that fluorescent matter, such as humic substances, plays an important role in the photo-Fenton reaction. In rain water, direct photolysis of hydrogen peroxide was an important source of OH radicals as well as the photo-Fenton reaction. The contributions of the photo-Fenton reaction to the OH radical photoformation rates in river and rain water samples were in the ranges of 2 - 29 and 5 - 38%, respectively. Taking into account the photo-Fenton reaction, 33 - 110 (mean: 80) and 42 - 110 (mean: 84)% of OH radical sources in river and rain water samples, respectively, collected in Hiroshima prefecture were elucidated.
収録刊行物
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- Analytical Sciences
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Analytical Sciences 23 (9), 1137-1142, 2007
社団法人 日本分析化学会
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詳細情報 詳細情報について
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- CRID
- 1390282679233036800
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- NII論文ID
- 10019747328
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- NII書誌ID
- AA10500785
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- COI
- 1:CAS:528:DC%2BD2sXhtFSjtrzK
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- ISSN
- 13482246
- 09106340
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- NDL書誌ID
- 8891103
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- PubMed
- 17878592
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- Web Site
- http://ir.lib.hiroshima-u.ac.jp/00047034
- https://ndlsearch.ndl.go.jp/books/R000000004-I8891103
- https://link.springer.com/content/pdf/10.2116/analsci.23.1137.pdf
- https://link.springer.com/article/10.2116/analsci.23.1137/fulltext.html
- http://www.jstage.jst.go.jp/article/analsci/23/9/23_9_1137/_pdf
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- 本文言語コード
- en
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