Simultaneous comparison of fluorescence spectrometry with multiphoton ionization spectrometry using a supersonic jet spectrometer

Cheng Huang Lin, Masami Hozumi, Totaro Imasaka, Nobuhiko Ishibashi

Research output: Contribution to journalArticle

12 Citations (Scopus)


The ratio of the signal intensities obtained in multiphoton ionization spectrometry and fluorescence spectrometry is compared semi-quantitatively for several aromatic compounds. The ratios, normalized against N-ethylaniline, are 0.2-1 for aniline derivatives, however, the value for anthracene is 7 × 10-6 in a one-colour ionization scheme and 7 × 10-4 in a two-colour ionization scheme. The small value obtained for the] large' aromatic compound is ascribed to the high ionization potential relative to the two-photon energy for excitation and subsequent ionization; three photons are required in the one-colour scheme and an additional laser with sufficient energy must be aligned temporally and spatially for ionization in the two-colour scheme.

Original languageEnglish
Pages (from-to)1037-1041
Number of pages5
JournalThe Analyst
Issue number10
Publication statusPublished - 1991 Dec 1


ASJC Scopus subject areas

  • Analytical Chemistry
  • Biochemistry
  • Environmental Chemistry
  • Spectroscopy
  • Electrochemistry

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