ABSTRACT
In this chapter, some points in common concerning spectrometries of atomic absorption and emission are tackled. Are developed: the transitions in both atomic emission and absorption – the different steps of the analysis according to the principle of each method – the criterion of the choice of one of these two methods rather than the other, and their quantitative and practical aspects. In the chapter, it is recalled that when there are several electrons in atoms, the origin of the rays may be difficult to attribute as is demonstrated by the writing of the electronic structure of some ions. Are recalled also the different steps of an analysis by atomic spectroscopy. They are not wholly the same for both methods. Some criteria of choice of one method rather than the other, are equally presented. Finally, principles of quantitative analysis by the two methods according to external calibration and by standard addition are discussed.
