DIClOFENAC SODIUM shows a remarkable decrease during the successive cyclic voltammetric sweeps as in the attached picture.
A decrease in the oxidation peak current occurs with an increase in the number of
successive sweeps when use 0.1M PBS PH 7 as electrolyte.
I would be very appreciated if anyone could help me to find out the answer of this problem?
Valerii Kotok
Dear Abdulwahab Salah,
More likely, each cycle decreases concentration of your substance due to oxidation process. In generally, peak value depends from concentration and other parametrs. Thus, each cycle decreases concentration and that is the reason of decreasing current value in the next cycle.
See attached file (section 1.3.2, equation 1.17)
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