DISSERTATION

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Results and Discussion
Figure 3.14. Determination of Cd in at varying potentials of the bare gold electrode. Cd
was measured from the imaginary impedance component for different ionic strengths: a)
10 mM PB with 20 mM K2SO4, b) 1 mM PB with 2 mM K2SO4 and c) 0.1 mM PB with 0.2
mM K2SO4 and for different frequencies: d) 100 Hz, e) 200 Hz and f) 500 Hz.
3.2 Importance of knowing the surface 46