Use of chemical conversion for determination of nitrated aromatic hydrocarbons using femtosecond ionization mass spectrometry

Takuya Fujii, Tomoko Imasaka, Totaro Imasaka

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

A sample containing nitrated aromatic hydrocarbons (NPAHs) was injected into the sample inlet port of a gas chromatograph (GC), along with hydrazine, a reducing reagent. The analytes that eluted from the GC column were measured by mass spectrometry (MS) using an ultraviolet femtosecond laser as the ionization source. When no reducing reagent was used, large numbers of polycyclic aromatic hydrocarbons (PAHs) including NPAHs were observed in the two-dimensional GC/MS display. In contrast, when hydrazine was present, reduced forms of NPAHs, which included amino PAHs, were detected. When a palladium or platinum catalyst was placed in the GC inlet port, the compounds were further reduced to non-aromatic hydrocarbons. The present approach would be useful for studies to evaluate the chemical reaction that converts the constituents contained in exhaust emitted from a diesel engine.

Original languageEnglish
Pages (from-to)48-53
Number of pages6
JournalAnalytica Chimica Acta
Volume996
DOIs
Publication statusPublished - Dec 15 2017

All Science Journal Classification (ASJC) codes

  • Analytical Chemistry
  • Biochemistry
  • Environmental Chemistry
  • Spectroscopy

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