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Effects of hydroxyl radicals generated from the depleted uranium-hydrogen peroxide systems
http://hdl.handle.net/10458/987
http://hdl.handle.net/10458/9876466865b-e50f-4d9b-8701-b8e9b82f1416
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
JRadioanalNuclChem-272-251-2007.pdf (246.6 kB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||
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| 公開日 | 2007-12-05 | |||||
| タイトル | ||||||
| タイトル | Effects of hydroxyl radicals generated from the depleted uranium-hydrogen peroxide systems | |||||
| 言語 | en | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| キーワード | Depleted uranium toxicity, Hydrogen peroxide, Hydroxyl radical, ESR, Spin-trapping, Biosubstances | |||||
| 資源タイプ | ||||||
| 資源タイプ | journal article | |||||
| 著者 |
Nakajima, Akira
× Nakajima, Akira× Ueda, Y |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | A complementary study of hydroxyl radical formation in the depleted uranium （DU）-hydrogen peroxide （H2O2） system and the effect of biosubstances on the system were examined using the spin-trapping method. Hydroxyl radical was formed in the uranyl ion （UO22+）, 5,5-dimethyl-1-pyrroline-N-oxide （DMPO）, and hydrogen peroxide （H2O2） mixture solution. The pseudo first order rate constants of DMPO-OH formation were estimated to be 0.033 s-1 for UO2 2+-H2O2-DMPO solution and 0.153 s-1 for UO2+-H2O2-DMPO solution. Obtained results indicated that the hydroxyl radical formation in the UO2 2+-H2O2 solution could be described as a stepwise reaction process including the reduction of UO2 2+ to UO2 + by H2O2 and the Fenton-type reaction of UO2 + with H2O2. Biosubstances, such as proteins, amino acids and saccharides, decreased the DMPO-OH formation, which was caused by the direct hydroxyl radical scavenging and the suppression of hydroxyl radical formation by coupling with uranyl ion. |
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| 言語 | en | |||||
| 内容記述 | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | The original publication is available at www.springerlink.com | |||||
| 言語 | en | |||||
| 書誌情報 |
en : Journal of radioanalytical and nuclear chemistry 巻 272, 号 2, p. 251-255, 発行日 2007-05 |
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| 出版者 | ||||||
| 出版者 | Springer | |||||
| 言語 | en | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 02365731 | |||||
| 書誌レコードID | ||||||
| 収録物識別子タイプ | NCID | |||||
| 収録物識別子 | AA11120189 | |||||
| 著者版フラグ | ||||||
| 出版タイプ | AM | |||||
