Page 49 - An Introduction to Analytical Atomic Spectrometry - L. Ebdon
P. 49

Page 33

            Q. How does the venturi effect contribute to the nebulization of the sample?

            Q. In the type of nebulizer described, where does most of the sample go?

            Q. How can ionization problems be overcome?

            Q. Summarize nebulization and atomization in a schematic diagram. Now compare this with Fig. 2.10.

            2.2.4 Burner Design

            Many early experiments were carried out with the Meker type of burner. A perforated metal plate is
            placed on top of an open pipe (the thicker the plate, the more stable is the flame). On ignition, a number
            of small cones



































                                                          Figure 2.10
                                                Summary of atomization in flames.
   44   45   46   47   48   49   50   51   52   53   54