Limitations:

By  AFS  offers  a  number  of  advantages  within  the  analysis  of a few  metals  and metalloids, it suffers from some limitations too. Few of these are given below.

• AFS requires combination along with chromatography to gives information regarding chemical form of the analyte during chemical separation.
• Sample preparation especially for the solids, is frequent extremely tedious and time- consuming process.
• The analysis might include chemical interference because of the chemical reactions among the analyte and other components of the sample (matrix) that might decrease the number of free atoms produced.
• In analysis of several samples, it might be essential to correct for the spectral interferences especially while continuous sources are used.
• The methods are limited primarily to the determination of metals and metalloids.