Determination of Hydroxyl Radical Photoproduction Rates in Natural Waters
Analytical Sciences 20 巻 1 号
153-158 頁
2004-01 発行
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| ファイル情報(添付) | |
| タイトル ( eng ) |
Determination of Hydroxyl Radical Photoproduction Rates in Natural Waters
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| 作成者 |
Takedoi Hiroshi
Yamaji Shuhei
Ohta Keiichi
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| 収録物名 |
Analytical Sciences
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| 巻 | 20 |
| 号 | 1 |
| 開始ページ | 153 |
| 終了ページ | 158 |
| 抄録 |
The photochemical formation rates of hydroxyl radicals (OH radicals) in river water and seawater were determined by a simple, rapid and sensitive benzene probe method, in which phenol formed by the reaction between benzene and photochemically-generated OH radicals was analyzed by on-line preconcentration HPLC. The OH radical formation rates from well-known OH radical sources, such as nitrate, nitrite and hydrogen peroxide, were in good agreement with those reported previously. River water samples containing high concentrations of nitrate and nitrite were found to show high OH radical formation rates. Ten to 80% of the OH radical formation in river water and seawater was due to the photolysis of nitrate and nitrite, but OH radical formation from hydrogen peroxide was negligible. The OH radical formation from unknown sources other than nitrate, nitrite and hydrogen peroxide was strongly correlated to the amount of fluorescent matter.
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| 内容記述 |
This work was supported partially by Grant-in-Aid for Scientific Research No.13574016 from the Ministry of Education, Cultutre, Sports, Science and Technology, Japan.
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| NDC分類 |
化学 [ 430 ]
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| 言語 |
英語
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| 資源タイプ | 学術雑誌論文 |
| 出版者 |
The Japan Society for Analytical Chemistry
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| 発行日 | 2004-01 |
| 権利情報 |
2004 © The Japan Society for Analytical Chemistry
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| 出版タイプ | Version of Record（出版社版。早期公開を含む） |
| アクセス権 | オープンアクセス |
| 収録物識別子 |
[ISSN] 0910-6340
[ISSN] 1348-2246
[NCID] AA10500785
[DOI] 10.2116/analsci.20.153
[DOI] https://doi.org/10.2116/analsci.20.153
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