Effect of various ions
The effect of potential interferences occurring in mussel
samples on the determination of cadmium was investigated
using the optimized FI system. Metal ions were added
individually to a solution containing 15 mg l21 cadmium, and FI
was applied. The results and the concentrations tested are shown
in Table 1. The results indicate that the method is free from
interferences, since signal variations greater than ±10% were
not observed.