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Seki Koh-ichi Noya Yoichi Mikami Yusuke Taneda Shinji Suzuki Akira K. Kuge Yuji Ohkura Kazue 《Environmental science and pollution research international》2010,17(3):717-723
Background, aim, and scope
We recently developed a new isolation method for diesel exhaust particles (DEP), involving successive extraction with H2O, sodium bicarbonate, and sodium hydroxide, in which the sodium hydroxide extract was found to consist of phenolic components. Analysis of the extract revealed that vasodilative-active nitrophenols are in DEP in significantly higher concentrations than those estimated by an earlier method involving a combination of solvent extraction and repeated chromatography. These findings indicated that our new procedure offers a simple, efficient, and reliable method for the isolation and identification of bioactive substances in DEP. This encouraged us to extend our work toward investigating new vasodilatory substances in the sodium bicarbonate extract. 相似文献
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