On the Observation of an Atomic Fluorescence Double-Resonance Excitation Process in an ICP Induced by a Spectral Continuum Source

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Double-resonance fluorescence refers to a process in which atoms (or molecules) are excited into the fluorescence state in a stepwise manner with two lasers tuned at appropriate atomic (or molecular) energy levels. The analytical advantage of such excitation processes as compared to that involving only one step (single-resonance fluorecence) lies in its increased spectral selectivity without a significant loss of sensitivity if both excited state transitions are saturated. Several analytical studies performed with tunable lasers in atmospheric-pressure atomizers have been reported in the literature.

Keywords: Flame atomic fluorescence spectroscopy

Document Type: Short Communication

DOI: http://dx.doi.org/10.1366/0003702894202445

Affiliations: 1: Department of Chemistry, University of Florida, Gainesville, Florida 32611 2: Department of Chemistry, University of Florida, Gainesville, Florida 32611; permanent address: Joint Research Center, Environment Institute, I-21020 Ispra (Varese), Italy

Publication date: May 1, 1989

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