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Laser-induced single-resonance and double-resonance atomic fluorescence spectrometry in a graphite tube atomiser

TitleLaser-induced single-resonance and double-resonance atomic fluorescence spectrometry in a graphite tube atomiser
Publication TypeArticolo su Rivista peer-reviewed
Year of Publication1988
AuthorsOmenetto, N., Cavalli P., Broglia M., Qi P., and Rossi Gianluigi
JournalJournal of Analytical Atomic Spectrometry
Volume3
Pagination231 - 235
Date Published1988///
KeywordsGraphite tube atomisation, Laser induced double-resonance fluorescence, Laser induced single-resonance fluorescence, Ultra-trace elemental detection
Abstract

One or two tunable dye lasers were axially directed through a commercial graphite furnace tube atomiser to excite the atomic fluorescence of the elements Tl, Pb and Cd. Scattering problems are overcome by exploiting single-step excited direct line fluorescence for Tl and Pb and two-step excited thermally assisted fluorescence for Cd. The optical layout did not require any modification of the graphite tube assembly as the fluorescence emission was collected with a plane mirror placed at one aperture of the tube at 45° with respect to the excitation axis. The mirror was pierced at the centre to allow the passage of the laser beam(s). The absolute detection limits for Tl, Pb and Cd in acidified solutions were found to be 2, 5 and 18 fg, respectively.

Notes

Cited By (since 1996): 5Export Date: 26 August 2010Source: Scopus

URLhttp://www.scopus.com/inward/record.url?eid=2-s2.0-0000417683&partnerID=40&md5=8ba318736927e857968828a194665c72
Citation Key499