Measurement Of Transient Signals Research Articles

Measurement of Transient Atomic Fluorescence and Atomic Absorption Signals using Photon Counting

RECENT advances in analytical atomic spectrometry have been concerned with the development of non-flame atom reservoirs, namely, the L'vov furnace1, the Massman furnace2, the filament atom reservoir3 and the platinum loop4. These devices give increased analytical sensitivity but the absorption or emission signals produced may be characterized by several peculiarities. First, the radiation signals derived are transient in nature; second, the signal profiles are usually asymmetric and may also be non-reproducible from sample to sample; and third, the signal duration may depend on sample concentration.