The application of resonance-enhanced multiphoton ionization technique in gas chromatography mass spectrometry

Adan Li, Jianzheng Song, Yang Sun, Tifeng Jiao

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Gas chromatography resonance-enhanced multiphoton ionization time-of-flight mass spectrometry (GC/REMPI-TOFMS) using a nanosecond laser has been applied to analyze the 16 polycyclic aromatic hydrocarbons (PAHs). The excited-state lifetime, absorption characters, and energy of electronic states of the 16 PAHs were investigated to optimize the ionization yield. A river water sample pretreated by means of solid phase extraction was analyzed to evaluate the performance of the analytical instrument. The results suggested that REMPI is superior to electron impact ionization method for soft ionization and suppresses the background signal due to aliphatic hydrocarbons. Thus, GC/REMPI-TOFMS is a more reliable method for the determination of PAHs present in the environment.

Original languageEnglish
Article number134828
JournalJournal of Spectroscopy
Volume2014
DOIs
Publication statusPublished - 2014

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gas chromatography
Gas chromatography
Ionization
Mass spectrometry
Polycyclic Aromatic Hydrocarbons
mass spectroscopy
ionization
polycyclic aromatic hydrocarbons
Impact ionization
Electronic states
aliphatic hydrocarbons
Hydrocarbons
Excited states
Rivers
rivers
electron impact
solid phases
Electrons
Water
Lasers

All Science Journal Classification (ASJC) codes

  • Analytical Chemistry
  • Atomic and Molecular Physics, and Optics
  • Spectroscopy

Cite this

The application of resonance-enhanced multiphoton ionization technique in gas chromatography mass spectrometry. / Li, Adan; Song, Jianzheng; Sun, Yang; Jiao, Tifeng.

In: Journal of Spectroscopy, Vol. 2014, 134828, 2014.

Research output: Contribution to journalArticle

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