Page 68 - An Introduction to Analytical Atomic Spectrometry - L. Ebdon
P. 68
Page 50
2.4.4 Applications
Flame atomic absorption spectrometry can be used to determine trace levels of analyte in a wide range
of sample types, with the proviso that the sample is first brought into solution. The methods described
in Section 1.6 are all applicable to FAAS. Chemical interferences and ionization suppression cause the
greatest problems, and steps must be taken to reduce these (e.g. the analysis of sea-water, refractory
geological samples or metals). The analysis of oils and organic solvents is relatively easy since these
samples actually provide fuel for the flame; however, build-up of carbon in the burner slot must be
avoided. Most biological samples can be analysed with ease provided that an appropriate digestion
method is used which avoids analyte losses.
