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Improvement of an efficient separation method for chemicals in diesel exhaust particles: analysis for nitrophenols
TLDR
The present method involving an acid-base extraction, in situ derivatization, and GC–MS analysis has shown to be a simple, efficient, and reliable method for the isolation and identification of the chemical substances in DEP. Expand
Isolation and identification of new vasodilative substances in diesel exhaust particles
  • K. Seki, Y. Noya, +4 authors K. Ohkura
  • Chemistry, Medicine
  • Environmental science and pollution research…
  • 1 March 2010
TLDR
A new fractionation method for DEP has made possible the isolation of new vasodilative compounds from the sodium bicarbonate extract, including 4-Hydroxy-3-nitrobenzoic acid, and 3-hydroxy-4-nitrogenic acid. Expand