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

Adan Li, Jianzheng Song, Yang Sun, Tifeng Jiao

研究成果: Contribution to journalArticle査読

1 被引用数 (Scopus)

抄録

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.

本文言語英語
論文番号134828
ジャーナルJournal of Spectroscopy
2014
DOI
出版ステータス出版済み - 2014

All Science Journal Classification (ASJC) codes

  • 分析化学
  • 原子分子物理学および光学
  • 分光学

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