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Towards a Database of Neutral-Atom Resonance-Line Oscillator Strengths for Spectrochemical Analysis: Beginnings, Present Status, and Prospects

A brief overview is given of the background to, and development of, a published database of oscillator strengths (f-values) of neutral-atom resonance lines (Doidge 1995 Spectrochim. Acta 50B 209), with reference to its relevance to absolute analysis by spectrochemical atomic absorption methods. A brief descriptive introduction to spectrochemical methods of analysis, and of the role of the f-value in absolute methods of analysis, is given. Criteria used in the evaluation and selection of f-values are described by way of examples, and the use of absolute atomic absorption data in helping identify inaccuracies in published f-values of certain elements is discussed. Some further discussion is also given of elements (Ge, Pd) whose f-values were considered as poorly defined, and an overall perspective on the literature of f-values is given, together with suggestions as to elements for which useful work can be done to improve the accuracy of the resonance line f-values.