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

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