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ID 47034
本文ファイル
著者
Nakatani, Nobutake
Ueda, Marina
Shindo, Hirotaka
Takeda, Kazuhiko 大学院生物圏科学研究科 広大研究者総覧
Sakugawa, Hiroshi 大学院生物圏科学研究科 広大研究者総覧
NDC
化学
抄録(英)
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.
内容記述
This study was supported by the Ministry of Education, Culture, Sports, Science and Technology, Japan by a Grant-in Aid for Scientific Research (No. 18310010).
掲載誌名
Analytical Sciences
23巻
9号
開始ページ
1137
終了ページ
1142
出版年月日
2007-09
出版者
The Japan Society for Analytical Chemistry
ISSN
0910-6340
1348-2246
NCID
出版者DOI
言語
英語
NII資源タイプ
学術雑誌論文
広大資料タイプ
学術雑誌論文
DCMIタイプ
text
フォーマット
application/pdf
著者版フラグ
publisher
権利情報
2007 © The Japan Society for Analytical Chemistry
関連情報URL
部局名
生物圏科学研究科