抜粋
When an aqueous solution of 5,5-dimethyl-1-pyrroline N-oxide (DMPO) was heated at 70°C for 30 min, formation of DMPO-OH was observed by ESR. This DMPO-OH radical formation was suppressed under an argon atmosphere. When water was replaced with ultra-pure water for ICP-MS experiments, DMPO-OH radical formation was also diminished. Under an argon atmosphere in ultra-pure water, the intensity of the DMPO-OH signal decreased to about 1/20 of that observed under aerobic conditions with regular purified water. The addition of hydroxyl radical scavengers such as mannitol did not affect the formation of DMPO-OH, but the signal turned faint in the presence of EDTA. We suggest that DMPO reacted with dissolved oxygen to form DMPO-OH. 2007
| 元の言語 | English |
|---|---|
| ページ（範囲） | 219-221 |
| ページ数 | 3 |
| ジャーナル | Analytical Sciences |
| 巻 | 23 |
| 発行部数 | 2 |
| DOI | |
| 出版物ステータス | Published - 2007 2 |
ASJC Scopus subject areas
- Analytical Chemistry
フィンガープリント DMPO-OH radical formation from 5,5-dimethyl-1-pyrroline N-oxide (DMPO) in hot water' の研究トピックを掘り下げます。これらはともに一意のフィンガープリントを構成します。
これを引用
Shoji, T., Li, L., Abe, Y., Ogata, M., Ishimoto, Y., Gonda, R., Mashino, T., Mochizuki, M., Uemoto, M., & Miyata, N. (2007). DMPO-OH radical formation from 5,5-dimethyl-1-pyrroline N-oxide (DMPO) in hot water. Analytical Sciences, 23(2), 219-221. https://doi.org/10.2116/analsci.23.219