Page 46 - An Introduction to Analytical Atomic Spectrometry - L. Ebdon
P. 46
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Figure 2.7
Schematic diagram of a concentric nebulizer system for a premixed burner.
Figure 2.8
The venturi effect.
achieved by a hydraulic seal (a 'U'-tube). It is imperative that water is present in the 'U'-tube before
lighting the flame!
The efficiency of this kind of indirect nebulizer and expansion chamber arrangement is usually about
10-15%. It is favoured because only very small droplets reach the flame, but clearly it would be useful
to improve its
