3. Using atomic spectra constants

3.1 Search for an excitation pattern

In the case of these techniques, the choice of excitation or detection scheme is essential to obtain the best detection limits. For AAS atomic absorption, LIF laser-induced fluorescence and LEI laser-assisted ionization techniques, there are numerous tables available in the literature.

Table 8[47] gives an example of the most sensitive lines used in flame atomic absorption.

Table 9 gives an example of the detection limits (in pure aqueous solution) achievable with the LIF and LEI laser techniques, using a flame as the atomizer. For...