Can anyone help with how to obtain a staircase response with Amperometry i-t using CH instruments (mine is CHI660e). I am working with detecting glucose, each time i try with the test medium on a magnetic stirrer, i get just a single line response. See picture attached
first u run bare at particular stirring roatation and once electrode stablised then add your analyte
Seema Chauhan, I did that, I allowed it to run for about 2 minutes before adding analyte (glucose), but no difference
Yaasir Olanrewaju The question lacks sufficient detail—can you clarify whether the electrode used is bare or modified? If it is a bare electrode, the detection of glucose may lack sensitivity. Additionally, the current values on the Y-axis appear high; consider adjusting the current sensitivity. To ensure stability, perform the i-t experiment 2–3 times in a blank electrolyte, as this will help stabilize the electrode. If the current remains unstable for the modified electrode, it could indicate an inherent instability in the modified material.
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