Abstract

A graphite filament atomizer is used to produce atoms for a variety of elements, and the resulting atomic vapor is excited by means of an Eimac xenon arc continuum source. The resulting atomic fluorescence is measured by a conventional atomic fluorescence spectrometric instrumental system. Relative and absolute detection limits (sample size of 0.5 to 1.0 μl) are in the range of 2 × 10⁻¹ to 0.1 μg/ml and 0.2 to 50 pg, respectively, for Ag, Cd, Co, Cr, Cu, Fe, Mg, Mn, Ni, Pb, Sn, Tl, and Zn. Relative standard deviations (for four measurements) range from 0.03 to 0.07 for all of the above. The atomic fluorescence spectrometric system is simple and inexpensive to construct, simple to operate, and useful for a wide variety of elements without the need of changing any instrumental component or parameter other than the wavelength of the monochromator and possibly the conditions of atomization.

Steady-state atomic fluorescence radiance expressions for continuum excitation

G. D. Boutilier, M. B. Blackburn, J. M. Mermet, S. J. Weeks, H. Haraguchi, J. D. Winefordner, and N. Omenetto
Appl. Opt. 17(15) 2291-2298 (1978)

Saturation in laser excited atomic fluorescence spectrometry: experimental verification

M. B. Blackburn, J.-M. Mermet, G. D. Boutilier, and J. D. Winefordner
Appl. Opt. 18(11) 1804-1807 (1979)

Light Sources for the Excitation of Atomic Resonance Fluorescence in Potassium and Rubidium*

R. J. Atkinson, G. D. Chapman, and L. Krause
J. Opt. Soc. Am. 55(10) 1269-1274 (1965)

Two-photon excited LIF determination of H-atom concentrations near a heated filament in a low pressure H₂ environment

Ulrich Meier, Katharina Kohse-Hoinghaus, Lothar Schafer, and Claus-Peter Klages
Appl. Opt. 29(33) 4993-4999 (1990)

Detection of trace amounts of Cr by two laser-based spectroscopic techniques: laser-enhanced ionization in flames and laser-induced fluorescence in graphite furnace

Ove Axner and Halina Rubinsztein-Dunlop
Appl. Opt. 32(6) 867-884 (1993)