Continuum-source atomic-absorption spectrometry: past, present and future prospects. Plenary lecture

Abstract

The possibility of using a continuum primary source in atomic-absorption spectrometry, rather than separate line sources for each element as is the conventional practice, has been a recurring theme in the literature of atomic absorption for many years. Past efforts have not been particularly successful. Recent advances in optical technology and data processing techniques have made this approach much more promising. Simultaneous multi-element atomic absorption, with flame and electrothermal atomisation, is now being carried out routinely with prototype instrumentation built by researchers. This approach may offer a future path for the continued development of atomic absorption.