Atmospheric formation of hydroxynitrofluoranthene from photo chemical reactions of 2-nitrofluoranthene
Atmospheric formation of hydroxynitrofluoranthene from photo chemical reactions of 2-nitrofluoranthene
复制标题
2-硝基荧蒽光化学反应在大气中形成羟基硝基荧蒽
DOI：
10.1080/10406638.2011.654307
复制
发表时间：
2012
期刊：
影响因子：
--
通讯作者：
K. Hayakawa
中科院分区：
文献类型：
--
作者：
T. Kameda;A. Akiyama;A. Toriba;N. Tang;K. Hayakawa
使用紫外线照射系统证明了通过 2-硝基荧蒽 (2-NF) 的光化学反应形成羟基硝基荧蒽 (OHNF)。 2-NF 在乙腈/水（3/1，v/v）中发生光反应，得到羟基硝基取代的产物。此外，我们在日本金泽收集的环境空气颗粒的可溶性有机部分中检测到了 2-NF 光反应产物中发现的 OHNF 异构体。大气中 OHNF 异构体的浓度估计小于 2 fmol m−3，与 1-羟基-3-硝基芘的浓度相当，但比 1-羟基-6-硝基芘低 10 倍。结果表明，大气中 OHNF 部分是通过二次形成过程形成的，即 2-NF 的光化学反应似乎对大气中 OHNF 的出现有显着影响。
The formation of hydroxynitrofluoranthene (OHNF) via photochemical reactions of 2-nitrofluoranthene (2-NF) was demonstrated using a UV irradiation system. The photoreaction of 2-NF in acetonitrile/water (3/1, v/v) gave a product that was hydroxynitro-substituted. Moreover, we detected an OHNF isomer, which was found in the 2-NF photoreaction products, in soluble organic fractions of ambient airborne particles collected in Kanazawa, Japan. The atmospheric concentration of the OHNF isomer was estimated to be less than 2 fmol m−3, which was comparable to that of 1-hydroxy-3-nitropyrene, but lower than that of 1-hydroxy-6-nitropyrene by a factor of 10. The results suggests that atmospheric OHNF is partly formedviasecondary formation processes, i.e., photochemical reactions of 2-NF appear to have a significant effect on the occurrence of OHNF in the atmosphere.