Abstract
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 language | English |
|---|---|
| Pages (from-to) | 1037-1041 |
| Number of pages | 5 |
| Journal | The Analyst |
| Volume | 116 |
| Issue number | 10 |
| DOIs | |
| Publication status | Published - 1991 Dec 1 |
ASJC Scopus subject areas
- Analytical Chemistry
- Biochemistry
- Environmental Chemistry
- Spectroscopy
- Electrochemistry
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Lin, C. H., Hozumi, M., Imasaka, T., & Ishibashi, N. (1991). Simultaneous comparison of fluorescence spectrometry with multiphoton ionization spectrometry using a supersonic jet spectrometer. The Analyst, 116(10), 1037-1041. https://doi.org/10.1039/AN9911601037