Community Research and Development Information Service - CORDIS

Abstract

The use of tunable lasers in atomic spectroscopy is discussed from the analytical and diagnostic points of view, with special reference to the techniques of laser induced fluorescence (LIF) and laser enhanced ionisation (LEI) or photoionisation, applied to several atom reservoirs such as flames, plasmas and electrothermal atomisers operated at atmospheric pressure. It is shown, on the one hand, how the fluorescence technique is capable of reaching detection powers in the high attogram range for selected atomic species and, on the other hand, how the combined use of the fluorescence and ionisation techniques allows a greater understanding of some excitation processes in an air-acetylene flame and an inductively coupled argon plasma. Several recent studies are illustrated, which were performed with two pulsed, tunable dye lasers, pumped by an excimer laser.

Additional information

Authors: OMENETTO N, JRC Ispra (IT)
Bibliographic Reference: Article: Journal of Trace and Microprobe Techniques, Vol. 10 (1992) No. 4, pp. 277-293
Availability: Nuclear Technology Publishing, PO Box 7, Ashford, Kent (GB)
ISBN: ISBN 1 870965 12 4
Record Number: 199410177 / Last updated on: 1994-11-28
Category: PUBLICATION
Original language: en
Available languages: en