Results
Various ashing temperatures were tried. We found
that the temperature should be about 350 #{176fo}rC best
sensitivity and smallest background absorption (Figure
1). At temperatures >400 #{176th}eC sensitivity is decreased
because of irregular loss of cadmium.
The influence of different atomization temperatures
was also studied (Figure 2); 1200#{176}Cseems to be a good
choice. As can be seen in Figure 2, increasing the atomization
temperature also results in increasing nonspecific
absorption.
As a result of the damping modification mentioned
above, the heating rate could be increased from 250 #{176}C
ıI ı 500 #{176ıi,}C with increased sensitivity as a result.
Recommended instrument-settings are shown in Table